8-letter words ending with ON
Dive into the specific realm of 8-letter words that conclude with the letter ON. This focused section reveals the fascinating ways in which words of this particular length, ending with ON, contribute to the richness of the English language. Whether it's for expanding your vocabulary, solving puzzles, or simply for the love of words, discover how these terms uniquely blend length and ending sound.
| Word | Points | Definition | Sentence example |
|---|---|---|---|
| question | 17 | uncertainty about the truth or factuality or existence of something | there is no question about the validity of the enterprise |
| position | 10 | a condition or position in which you find yourself | the unpleasant situation (or position) of having to choose between two evils |
| decision | 11 | the act of making up your mind about something | the burden of decision was his |
| vacation | 13 | leisure time away from work devoted to rest or pleasure | we get two weeks of vacation every summer |
| solution | 8 | a statement that solves a problem or explains how to solve the problem | they were trying to find a peaceful solution |
| location | 10 | a determination of the place where something is | - |
| champion | 17 | someone who has won first place in a competition | - |
| religion | 9 | a strong belief in a supernatural power or powers that control human destiny | - |
| reaction | 10 | (chemistry) a process in which one or more substances are changed into others | there was a chemical reaction of the lime with the ground water |
| division | 12 | a group of ships of similar type | - |
| grandson | 10 | a male grandchild | - |
| occasion | 12 | an event that occurs at a critical time | it was needed only on special occasions |
| audition | 9 | perform in order to get a role | She auditioned for a role on Broadway |
| election | 10 | a vote to select the winner of a position or political office | the results of the election will be announced tonight |
| function | 13 | the actions and activities assigned to or required or expected of a person or group | the function of a teacher |
| creation | 10 | the human act of creating | - |
| illusion | 8 | an illusory feat; considered magical by naive observers | - |
| abortion | 10 | failure of a plan | - |
| addition | 10 | something added to what you already have | he was a new addition to the staff |
| relation | 8 | (law) the principle that an act done at a later time is deemed by law to have occurred at an earlier time | his attorney argued for the relation back of the amended complaint to the time the initial complaint was filed |
| invasion | 11 | any entry into an area not previously occupied | an invasion of tourists |
| pentagon | 11 | a five-sided polygon | - |
| ambition | 12 | a cherished desire | his ambition is to own his own business |
| skeleton | 12 | a scandal that is kept secret | there must be a skeleton somewhere in that family's closet |
| napoleon | 10 | a card game similar to whist; usually played for stakes | - |
| donation | 9 | act of giving in common with others for a common purpose especially to a charity | - |
| adoption | 11 | the appropriation (of ideas or words etc) from another source | - |
| equation | 17 | the act of regarding as equal | - |
| devotion | 12 | religious zeal; the willingness to serve God | - |
| marathon | 13 | any long and arduous undertaking | - |
| petition | 10 | a formal message requesting something that is submitted to an authority | - |
| squadron | 18 | a cavalry unit consisting of two or more troops and headquarters and supporting arms | - |
| ignition | 9 | the mechanism that ignites the fuel in an internal-combustion engine | - |
| erection | 10 | the act of building or putting up | - |
| trillion | 8 | the number that is represented as a one followed by 18 zeros | in England they call a quintillion a trillion |
| scorpion | 12 | the eighth sign of the zodiac; the sun is in this sign from about October 23 to November 21 | - |
| stallion | 8 | uncastrated adult male horse | - |
| rotation | 8 | the act of rotating as if on an axis | the rotation of the dancer kept time with the music |
| garrison | 9 | United States abolitionist who published an anti-slavery journal (1805-1879) | - |
| cinnamon | 12 | tropical Asian tree with aromatic yellowish-brown bark; source of the spice cinnamon | - |
| junction | 17 | the state of being joined together | - |
| fraction | 13 | perform a division | - |
| eruption | 10 | (of volcanos) pouring out fumes or lava (or a deposit so formed) | - |
| oblivion | 13 | the state of being disregarded or forgotten | - |
| delusion | 9 | (psychology) an erroneous belief that is held in the face of evidence to the contrary | - |
| uncommon | 14 | marked by an uncommon quality; especially superlative or extreme of its kind | an uncommon sense of humor |
| pavilion | 13 | large and often sumptuous tent | - |
| duration | 9 | the property of enduring or continuing in time | - |
| plankton | 14 | the aggregate of small plant and animal organisms that float or drift in great numbers in fresh or salt water | - |
| friction | 13 | a state of conflict between persons | - |
| vocation | 13 | a body of people doing the same kind of work | - |
| mutation | 10 | (genetics) any event that changes genetic structure; any alteration in the inherited nucleic acid sequence of the genotype of an organism | - |
| aviation | 11 | travel via aircraft | - |
| eviction | 13 | action by a landlord that compels a tenant to leave the premises (as by rendering the premises unfit for occupancy); no physical expulsion or legal process is involved | - |
| electron | 10 | an elementary particle with negative charge | - |
| incision | 10 | the cutting of or into body tissues or organs (especially by a surgeon as part of an operation) | - |
| imprison | 12 | lock up or confine, in or as in a jail | The suspects were imprisoned without trial |
| luncheon | 13 | a midday meal | - |
| revision | 11 | the act of rewriting something | - |
| dominion | 11 | a region marked off for administrative or other purposes | - |
| traction | 10 | the friction between a body and the surface on which it moves (as between an automobile tire and the road) | - |
| sanction | 10 | official permission or approval | - |
| fixation | 18 | (histology) the preservation and hardening of a tissue sample to retain as nearly as possible the same relations they had in the living body | - |
| aversion | 11 | a feeling of intense dislike | - |
| cauldron | 11 | a very large pot that is used for boiling | - |
| envision | 11 | picture to oneself; imagine possible | I cannot envision him as President |
| ejection | 17 | the act of forcing out someone or something | the ejection of troublemakers by the police |
| citation | 10 | a short note recognizing a source of information or of a quoted passage | the student's essay failed to list several important citations |
| unbutton | 10 | undo the buttons of | unbutton the shirt |
| taxation | 15 | government income due to taxation | - |
| infusion | 11 | a solution obtained by steeping or soaking a substance (usually in water) | - |
| teaspoon | 10 | as much as a teaspoon will hold | - |
| sedation | 9 | the administration of a sedative agent or drug | - |
| pantheon | 13 | all the gods of a religion | - |
| emission | 10 | the act of emitting; causing to flow forth | - |
| volition | 11 | the capability of conscious choice and decision and intention | the exercise of their volition we construe as revolt |
| fruition | 11 | something that is made real or concrete | - |
| coercion | 12 | using force to cause something to occur | they didn't have to use coercion |
| sedition | 9 | an illegal action inciting resistance to lawful authority and tending to cause the disruption or overthrow of the government | - |
| demotion | 11 | act of lowering in rank or position | - |
| bouillon | 10 | a clear seasoned broth | - |
| cohesion | 13 | the state of cohering or sticking together | - |
| chaperon | 15 | one who accompanies and supervises a young woman or gatherings of young people | - |
| omission | 10 | any process whereby sounds or words are left out of spoken words or phrases | - |
| sturgeon | 9 | large primitive fishes valued for their flesh and roe; widely distributed in the North Temperate Zone | - |
| oxymoron | 20 | conjoining contradictory terms (as in `deafening silence') | - |
| exertion | 15 | use of physical or mental energy; hard work | they managed only with great exertion |
| dilation | 9 | the act of expanding an aperture | the dilation of the pupil of the eye |
| ablution | 10 | the ritual washing of a priest's hands or of sacred vessels | - |
| allusion | 8 | passing reference or indirect mention | - |
| jettison | 15 | throw as from an airplane | - |
| negation | 9 | a negative statement; a statement that is a refusal or denial of some other statement | - |
| gumption | 13 | fortitude and determination | - |
| stillson | 8 | - | - |
| derision | 9 | the act of deriding or treating with contempt | - |
| gridiron | 10 | a cooking utensil of parallel metal bars; used to grill fish or meat | - |
| notation | 8 | a technical system of symbols used to represent special things | - |
| abrasion | 10 | erosion by friction | - |
| tarragon | 9 | fresh leaves (or leaves preserved in vinegar) used as seasoning | - |
| munition | 10 | defensive structure consisting of walls or mounds built around a stronghold to strengthen it | - |
| estragon | 9 | fresh leaves (or leaves preserved in vinegar) used as seasoning | - |
| spittoon | 10 | a receptacle for spit (usually in a public place) | - |
| pavillon | 13 | - | - |
| emulsion | 10 | a light-sensitive coating on paper or film; consists of fine grains of silver bromide suspended in a gelatin | - |
| ablation | 10 | surgical removal of a body part or tissue | - |
| scullion | 10 | a kitchen servant employed to do menial tasks (especially washing) | - |
| biathlon | 13 | - | - |
| deletion | 9 | the omission that is made when an editorial change shortens a written passage | an editor's deletions frequently upset young authors |
| papillon | 12 | small slender toy spaniel with erect ears and a black-spotted brown to white coat | - |
| positron | 10 | an elementary particle with positive charge; interaction of a positron and an electron results in annihilation | - |
| mastodon | 11 | extinct elephant-like mammal that flourished worldwide from Miocene through Pleistocene times; differ from mammoths in the form of the molar teeth | - |
| whoreson | 14 | insulting terms of address for people who are stupid or irritating or ridiculous | - |
| telethon | 11 | - | - |
| bludgeon | 12 | strike with a club or a bludgeon | - |
| inaction | 10 | the state of being inactive | - |
| oblation | 10 | the act of offering the bread and wine of the Eucharist | - |
| legation | 9 | the post or office of legate | - |
| vexation | 18 | anger produced by some annoying irritation | - |
| ganglion | 10 | an encapsulated neural structure consisting of a collection of cell bodies or neurons | - |
| doubloon | 11 | a former Spanish gold coin | - |
| adhesion | 12 | the property of sticking together (as of glue and wood) or the joining of surfaces of different composition | a heated hydraulic press was required for adhesion |
| adaption | 11 | the process of adapting to something (such as environmental conditions) | - |
| exaction | 17 | act of demanding or levying by force or authority | exaction of tribute |
| excision | 17 | the omission that is made when an editorial change shortens a written passage | both parties agreed on the excision of the proposed clause |
| forenoon | 11 | the time period between dawn and noon | - |
| libation | 10 | a serving (of wine) poured out in honor of a deity | - |
| carillon | 10 | playing a set of bells that are (usually) hung in a tower | - |
| dilution | 9 | a diluted solution | - |
| unreason | 8 | the state of being irrational; lacking powers of understanding | - |
| effusion | 14 | an unrestrained expression of emotion | - |
| falchion | 16 | a short broad slightly convex medieval sword with a sharp point | - |
| macaroon | 12 | chewy cookie usually containing almond paste | - |
| nonunion | 8 | not belonging to or not allowing affiliation with a trade union | nonunion carpenters |
| ligation | 9 | (surgery) tying a duct or blood vessel with a ligature (as to prevent bleeding during surgery) | - |
| simoleon | 10 | - | - |
| puncheon | 15 | - | - |
| emersion | 10 | the act of emerging | - |
| emoticon | 12 | a representation of a facial expression (as a smile or frown) created by typing a sequence of characters in sending email | :-( and :-) are emoticons |
| gyration | 12 | the act of rotating in a circle or spiral | - |
| ideation | 9 | the process of forming and relating ideas | - |
| myrmidon | 16 | a follower who carries out orders without question | - |
| locution | 10 | a word or phrase that particular people use in particular situations | - |
| unweapon | 13 | - | - |
| unpoison | 10 | - | - |
| unprison | 10 | - | - |
| unseason | 8 | - | - |
| warrison | 11 | - | - |
| zonation | 17 | - | - |
| venation | 11 | (zoology) the system of venous blood vessels in an animal | - |
| volution | 11 | a rolling or revolving motion | - |
| vocalion | 13 | - | - |
| vigneron | 12 | - | - |
| subtaxon | 17 | - | - |
| sudation | 9 | the process of the sweat glands of the skin secreting a salty fluid | - |
| swaption | 13 | - | - |
| taileron | 8 | - | - |
| syndeton | 12 | - | - |
| teletron | 8 | - | - |
| thermion | 13 | an electrically charged particle (electron or ion) emitted by a substance at a high temperature | - |
| tenoroon | 8 | a tenor bassoon; pitched a fifth higher than the ordinary bassoon | - |
| tevatron | 11 | - | - |
| tetragon | 9 | a four-sided polygon | - |
| tetraxon | 15 | - | - |
| trahison | 11 | - | - |
| trudgeon | 10 | - | - |
| trunnion | 8 | - | - |
| unperson | 10 | a person regarded as nonexistent and having no rights; a person whose existence is systematically ignored (especially for ideological or political reasons) | George Orwell predicted that political dissidents would be treated as unpersons |
| squarson | 17 | - | - |
| sponsion | 10 | - | - |
| spontoon | 10 | - | - |
| sternson | 8 | - | - |
| stellion | 8 | - | - |
| stegodon | 10 | - | - |
| stillion | 8 | - | - |
| stiction | 10 | - | - |
| stasimon | 10 | - | - |
| rigaudon | 10 | - | - |
| rigadoon | 10 | - | - |
| rogation | 9 | a solemn supplication ceremony prescribed by the church | - |
| salpicon | 12 | - | - |
| scansion | 10 | analysis of verse into metrical patterns | - |
| scallion | 10 | plant having a large slender white bulb and flat overlapping dark green leaves; used in cooking; believed derived from the wild Allium ampeloprasum | - |
| scoinson | 10 | - | - |
| scontion | 10 | - | - |
| scholion | 13 | - | - |
| scission | 10 | the act of dividing by cutting or splitting | - |
| semillon | 10 | - | - |
| shagroon | 12 | - | - |
| shalloon | 11 | - | - |
| skiatron | 12 | - | - |
| skillion | 12 | - | - |
| smidgeon | 12 | a tiny or scarcely detectable amount | - |
| smilodon | 11 | - | - |
| solation | 8 | - | - |
| southron | 11 | - | - |
| sorption | 10 | the process in which one substance takes up or holds another (by either absorption or adsorption) | - |
| spadroon | 11 | - | - |
| remotion | 10 | the act of removing | - |
| replicon | 12 | - | - |
| resummon | 12 | - | - |
| reseason | 8 | - | - |
| pantalon | 10 | - | - |
| parergon | 11 | - | - |
| parazoon | 19 | - | - |
| pauldron | 11 | - | - |
| phlegmon | 16 | - | - |
| picaroon | 12 | - | - |
| plastron | 10 | a large pad worn by a fencer to protect the chest | - |
| pimenton | 12 | - | - |
| polyaxon | 20 | - | - |
| poltroon | 10 | an abject coward | - |
| polyphon | 18 | - | - |
| pleuston | 10 | - | - |
| pliotron | 10 | - | - |
| plectron | 12 | a small thin device (of metal or plastic or ivory) used to pluck a stringed instrument | - |
| potation | 10 | a serving of drink (usually alcoholic) drawn from a keg | - |
| pouldron | 11 | - | - |
| polyzoon | 22 | - | - |
| pression | 10 | - | - |
| preunion | 10 | - | - |
| prounion | 10 | - | - |
| propylon | 15 | - | - |
| prosopon | 12 | - | - |
| putcheon | 15 | - | - |
| quadroon | 18 | an offspring of a mulatto and a white parent; a person who is one-quarter black | - |
| quarrion | 17 | - | - |
| pupation | 12 | - | - |
| punition | 10 | - | - |
| recision | 10 | - | - |
| rebutton | 10 | - | - |
| refusion | 11 | - | - |
| oversoon | 11 | - | - |
| pancheon | 15 | - | - |
| panchion | 15 | - | - |
| pacation | 12 | - | - |
| analogon | 9 | - | - |
| alluvion | 11 | clay or silt or gravel carried by rushing streams and deposited where the stream slows down | - |
| aphelion | 13 | apoapsis in solar orbit; the point in the orbit of a planet or comet that is at the greatest distance from the sun | - |
| annexion | 15 | - | - |
| antimuon | 10 | the antiparticle of a muon; decays to positron and neutrino and antineutrino | - |
| antiphon | 13 | a verse or song to be chanted or sung in response | - |
| archaeon | 13 | - | - |
| avoision | 11 | - | - |
| avulsion | 11 | a forcible tearing or surgical separation of one body part from another | - |
| bevatron | 13 | a cyclotron that accelerates protons up to several billion electron volts | - |
| betatron | 10 | accelerates a continuous beam of electrons to high speeds by means of the electric field produced by changing magnetic flux | - |
| bigaroon | 11 | - | - |
| bibation | 12 | - | - |
| bourgeon | 11 | produce buds, branches, or germinate | - |
| bosthoon | 13 | - | - |
| bursicon | 12 | - | - |
| cabochon | 17 | a highly polished gem that is cut convexly but without facets | - |
| adnation | 9 | - | - |
| advowson | 15 | the right in English law of presenting a nominee to a vacant ecclesiastical benefice | - |
| aeration | 8 | the act of charging a liquid with a gas making it effervescent | - |
| acromion | 12 | the outermost point of the spine of the shoulder blade | - |
| allerion | 8 | - | - |
| agnation | 9 | line of descent traced through the paternal side of the family | - |
| affusion | 14 | the act of baptizing someone by pouring water on their head | - |
| agraphon | 14 | - | - |
| dynatron | 12 | - | - |
| ducatoon | 11 | - | - |
| duathlon | 12 | - | - |
| egestion | 9 | - | - |
| ectozoon | 19 | any external parasitic organism (as fleas) | - |
| eduction | 11 | - | - |
| eclosion | 10 | - | - |
| encomion | 12 | - | - |
| enaction | 10 | - | - |
| endozoon | 18 | - | - |
| emiction | 12 | - | - |
| emblazon | 21 | decorate with colors | - |
| empoison | 12 | - | - |
| empatron | 12 | - | - |
| entozoon | 17 | any of various parasites that live in the internal organs of animals (especially intestinal worms) | - |
| episemon | 12 | - | - |
| epiploon | 12 | - | - |
| enneagon | 9 | - | - |
| etherion | 11 | - | - |
| ethephon | 16 | - | - |
| eudaemon | 11 | a benevolent spirit | - |
| eudaimon | 11 | - | - |
| eucaryon | 13 | - | - |
| eukaryon | 15 | - | - |
| eulachon | 13 | - | - |
| erigeron | 9 | cosmopolitan genus of usually perennial herbs with flowers that resemble asters; leaves occasionally (especially formerly) used medicinally | - |
| epyllion | 13 | - | - |
| erythron | 14 | - | - |
| evulsion | 11 | - | - |
| evection | 13 | - | - |
| eversion | 11 | the act of turning inside out | - |
| fauchion | 16 | - | - |
| fanfaron | 14 | - | - |
| fetation | 11 | - | - |
| fenthion | 14 | - | - |
| flaperon | 13 | - | - |
| flatiron | 11 | an iron that was heated by placing it on a stove | - |
| flexagon | 19 | - | - |
| flection | 13 | the state of being flexed (as of a joint) | - |
| frontoon | 11 | - | - |
| gambeson | 13 | - | - |
| gambroon | 13 | - | - |
| disunion | 9 | the termination or destruction of union | - |
| dipteron | 11 | insects having usually a single pair of functional wings (anterior pair) with the posterior pair reduced to small knobbed structures and mouth parts adapted for sucking or lapping or piercing | - |
| dotation | 9 | - | - |
| grillion | 9 | - | - |
| graviton | 12 | a gauge boson that mediates the (extremely weak) gravitational interactions between particles | - |
| halation | 11 | - | - |
| gueridon | 10 | a small round table | - |
| gumphion | 16 | - | - |
| haqueton | 20 | - | - |
| hapteron | 13 | - | - |
| hereupon | 13 | - | - |
| herisson | 11 | - | - |
| heptagon | 14 | a seven-sided polygon | - |
| histrion | 11 | a theatrical performer | - |
| himation | 13 | - | - |
| hypopyon | 21 | - | - |
| hurcheon | 16 | - | - |
| illation | 8 | the reasoning involved in drawing a conclusion or making a logical judgment on the basis of circumstantial evidence and prior conclusions rather than on the basis of direct observation | - |
| illision | 8 | - | - |
| ignitron | 9 | - | - |
| inhesion | 11 | - | - |
| infixion | 18 | - | - |
| iodation | 9 | - | - |
| inustion | 8 | - | - |
| irrision | 8 | - | - |
| isochron | 13 | - | - |
| isodicon | 11 | - | - |
| isodomon | 11 | - | - |
| irenicon | 10 | - | - |
| kakiemon | 18 | - | - |
| jobation | 17 | - | - |
| klystron | 15 | an electron tube used to generate or amplify electromagnetic radiation in the microwave region by velocity modulation | - |
| kenotron | 12 | - | - |
| gelation | 9 | - | - |
| gohonzon | 21 | - | - |
| gnathion | 12 | the most inferior point of the mandible in the midline | - |
| gonfalon | 12 | - | - |
| gonfanon | 12 | - | - |
| gombroon | 13 | - | - |
| glucagon | 12 | a hormone secreted by the pancreas; stimulates increases in blood sugar levels in the blood (thus opposing the action of insulin) | - |
| lunation | 8 | the period between successive new moons (29.531 days) | - |
| luxation | 15 | displacement or misalignment of a joint or organ | - |
| longeron | 9 | - | - |
| magneton | 11 | a unit of magnetic moment of a molecular or atomic or subatomic particle | - |
| martagon | 11 | lily with small dull purple flowers of northwestern Europe and northwestern Asia | - |
| mascaron | 12 | - | - |
| matfelon | 13 | - | - |
| metazoon | 19 | - | - |
| methadon | 14 | synthetic narcotic drug similar to morphine but less habit-forming; used in narcotic detoxification and maintenance of heroin addiction | - |
| mezereon | 19 | small European deciduous shrub with fragrant lilac-colored flowers followed by red berries on highly toxic twigs | - |
| melodeon | 11 | - | - |
| melodion | 11 | - | - |
| mesotron | 10 | an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0 | - |
| misunion | 10 | - | - |
| mirliton | 10 | - | - |
| monition | 10 | a firm rebuke | - |
| multiton | 10 | - | - |
| moufflon | 16 | wild mountain sheep of Corsica and Sardinia | - |
| neuraxon | 15 | - | - |
| negatron | 9 | an elementary particle with negative charge | - |
| natation | 8 | the act of someone who floats on the water | - |
| nolition | 8 | - | - |
| nidation | 9 | (embryology) the organic process whereby a fertilized egg becomes implanted in the lining of the uterus of placental mammals | - |
| nivation | 11 | - | - |
| nodation | 9 | - | - |
| oerlikon | 12 | - | - |
| octoroon | 10 | an offspring of a quadroon and a white parent; a person who is one-eighth black | - |
| octaroon | 10 | - | - |
| novation | 11 | (law) the replacement of one obligation by another by mutual agreement of both parties; usually the replacement of one of the original parties to a contract with the consent of the remaining party | - |
| noumenon | 10 | the intellectual conception of a thing as it is in itself, not as it is known through perception | - |
| nutation | 8 | uncontrolled nodding | - |
| nudation | 9 | - | - |
| nuncheon | 13 | - | - |
| orillion | 8 | - | - |
| orthicon | 13 | a now obsolete picture pickup tube in a television camera; electrons emitted from a photoemissive surface in proportion to the intensity of the incident light are focused onto the target causing secondary emission of electrons | - |
| oophoron | 13 | - | - |
| oulachon | 13 | - | - |
| ostracon | 10 | - | - |
| ostrakon | 12 | - | - |
| lenition | 8 | - | - |
| lewisson | 11 | - | - |
| lavation | 11 | the work of cleansing (usually with soap and water) | - |
| laxation | 15 | the elimination of fecal waste through the anus | - |
| lobation | 10 | - | - |
| limation | 10 | - | - |
| chamfron | 18 | medieval plate armor to protect a horse's head | - |
| chanfron | 16 | medieval plate armor to protect a horse's head | - |
| chaffron | 19 | - | - |
| chaldron | 14 | a British imperial capacity measure (liquid or dry) equal to 36 bushels | - |
| cavesson | 13 | - | - |
| chawdron | 17 | - | - |
| cheveron | 16 | - | - |
| chrismon | 15 | - | - |
| ciclaton | 12 | - | - |
| cibation | 12 | - | - |
| coaction | 12 | act of working jointly | - |
| conation | 10 | - | - |
| colophon | 15 | a publisher's emblem printed in a book (usually on the title page) | - |
| copatron | 12 | - | - |
| coolamon | 12 | - | - |
| cooption | 12 | - | - |
| crampoon | 14 | an iron spike attached to the shoe to prevent slipping on ice when walking or climbing | - |
| cotillon | 10 | - | - |
| cryotron | 13 | - | - |
| decurion | 11 | - | - |
| deration | 9 | - | - |
| deuteron | 9 | the nucleus of deuterium; consists of one proton and one neutron; used as a bombarding particle in accelerators | - |
| delation | 9 | - | - |
| dihedron | 13 | - | - |
| digitron | 10 | - | - |
| diobolon | 11 | - | - |
| diluvion | 12 | - | - |
| diazinon | 18 | - | - |
| diapason | 11 | either of the two main stops on a pipe organ | - |
| cameleon | 12 | - | - |
| cannelon | 10 | - | - |
| calutron | 10 | - | - |
| cardamon | 13 | aromatic seeds used as seasoning like cinnamon and cloves especially in pickles and barbecue sauces | - |
| abutilon | 10 | herbs or shrubs or small trees: flowering maple; Indian mallow | - |
| paleocon | 12 | - | - |
| oxyanion | 18 | - | - |
| curation | 10 | - | - |
| skyrmion | 17 | - | - |
| babymoon | 17 | - | - |
