7-letter words containing TH
Embark on an exploration of 7-letter words that contain the letter TH. This segment uncovers the diverse range of words that incorporate TH within this specific length, revealing the versatility and richness of language. Ideal for vocabulary enthusiasts and word-game aficionados.
| Word | Points | Definition | Sentence example |
|---|---|---|---|
| nothing | 11 | a quantity of no importance | it looked like nothing I had ever seen before |
| thought | 14 | a personal belief or judgment that is not founded on proof or certainty | what are your thoughts on Haiti? |
| another | 10 | any of various alternatives; some other | put it off to another (or some other) day |
| through | 14 | having finished or arrived at completion | after the treatment, the patient is through except for follow-up |
| brother | 12 | a close friend who accompanies his buddies in their activities | - |
| without | 13 | Unless; except; -- introducing a clause. | - |
| clothes | 12 | clothing in general | he always bought his clothes at the same store |
| whether | 16 | - | - |
| neither | 10 | not either; not one or the other | - |
| breathe | 12 | expel (gases or odors) | - |
| further | 13 | to or at a greater extent or degree or a more advanced stage (`further' is used more often than `farther' in this abstract sense) | further complicated by uncertainty about the future |
| weather | 13 | face and withstand with courage | - |
| healthy | 16 | promoting health; healthful | a healthy diet |
| theater | 10 | the art of writing and producing plays | - |
| therapy | 15 | (medicine) the act of caring for someone (as by medication or remedial training etc.) | heat therapy gave the best relief |
| thunder | 11 | utter words loudly and forcefully | - |
| thirsty | 13 | (usually followed by `for') extremely desirous | thirsty for information |
| thieves | 13 | - | - |
| theatre | 10 | the art of writing and producing plays | - |
| beneath | 12 | in or to a place that is lower | - |
| heather | 13 | common Old World heath represented by many varieties; low evergreen grown widely in the northern hemisphere | - |
| leather | 10 | an animal skin made smooth and flexible by removing the hair and then tanning | - |
| seventh | 13 | one part in seven equal parts | - |
| wealthy | 16 | having an abundant supply of money or possessions of value | wealthy corporations |
| feather | 13 | turning an oar parallel to the water between pulls | - |
| bathing | 13 | the act of washing yourself (or another person) | - |
| farther | 13 | to or at a greater extent or degree or a more advanced stage (`further' is used more often than `farther' in this abstract sense) | the application of the law was extended farther |
| monthly | 15 | a periodical that is published every month (or 12 issues per year) | - |
| athlete | 10 | a person trained to compete in sports | - |
| timothy | 15 | grass with long cylindrical spikes grown in northern United States and Europe for hay | - |
| bathtub | 14 | a relatively large open container that you fill with water and use to wash the body | - |
| brothel | 12 | a building where prostitutes are available | - |
| panther | 12 | large American feline resembling a lion | - |
| thinner | 10 | a diluting agent | - |
| atheist | 10 | related to or characterized by or given to atheism | atheist leanings |
| ethical | 12 | adhering to ethical and moral principles | it seems ethical and right |
| thermal | 12 | relating to or associated with heat | thermal movements of molecules |
| mammoth | 16 | so exceedingly large or extensive as to suggest a giant or mammoth | a mammoth ship |
| stealth | 10 | avoiding detection by moving carefully | - |
| sabbath | 14 | a day of rest and worship: Sunday for most Christians; Saturday for the Jews and a few Christians; Friday for Muslims | - |
| methane | 12 | a colorless odorless gas used as a fuel | - |
| authors | 10 | - | - |
| rebirth | 12 | the revival of learning and culture | - |
| earthly | 13 | of or belonging to or characteristic of this earth as distinguished from heaven | earthly beings |
| threads | 11 | informal terms for clothing | - |
| empathy | 17 | understanding and entering into another's feelings | - |
| goliath | 11 | someone or something that is abnormally large and powerful | - |
| thinker | 14 | an important intellectual | - |
| rethink | 14 | thinking again about a choice previously made | - |
| thereby | 15 | - | - |
| mouthed | 13 | - | - |
| twelfth | 16 | one part in twelve equal parts | - |
| clothed | 13 | covered with or as if with clothes or a wrap or cloak | leaf-clothed trees |
| lithium | 12 | a soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals | - |
| anthrax | 17 | a highly infectious animal disease (especially cattle and sheep); it can be transmitted to people | - |
| smother | 12 | envelop completely | smother the meat in gravy |
| therein | 10 | (formal) in or into that thing or place | they can read therein what our plans are |
| heathen | 13 | a person who does not acknowledge your god | - |
| thermos | 12 | vacuum flask that preserves temperature of hot or cold drinks | - |
| thereof | 13 | from that circumstance or source | - |
| lengthy | 14 | relatively long in duration; tediously protracted | a lengthy visit from her mother-in-law |
| thyself | 16 | - | - |
| theorem | 12 | an idea accepted as a demonstrable truth | - |
| thirdly | 14 | in the third place | - |
| toothed | 11 | having an irregularly notched or toothed margin as though gnawed | - |
| hothead | 14 | a belligerent grouch | - |
| pathway | 18 | a trodden path | - |
| deathly | 14 | having the physical appearance of death | a deathly pallor |
| thrower | 13 | a person who twists silk or rayon filaments into a thread or yarn | - |
| thyroid | 14 | located near the base of the neck | - |
| pothead | 13 | someone who smokes marijuana habitually | - |
| uncouth | 12 | lacking refinement or cultivation or taste | an untutored and uncouth human being |
| breadth | 13 | the extent of something from side to side | - |
| whither | 16 | - | - |
| fathead | 14 | a man who is a stupid incompetent fool | - |
| menthol | 12 | a crystalline compound that has the cool and minty taste and odor that occurs naturally in peppermint oil; used as a flavoring and in medicine to relieve itching, pain, and nasal congestion | - |
| pothole | 12 | a pit or hole produced by wear or weathering (especially in a road surface) | - |
| atheism | 12 | a lack of belief in the existence of God or gods | - |
| ethanol | 10 | the intoxicating agent in fermented and distilled liquors; used pure or denatured as a solvent or in medicines and colognes and cleaning solutions and rocket fuel; proposed as a renewable clean-burning additive to gasoline | - |
| thrifty | 16 | mindful of the future in spending money | - |
| withers | 13 | the highest part of the back at the base of the neck of various animals especially draft animals | - |
| warpath | 15 | a course leading to warfare or battle | - |
| urethra | 10 | duct through which urine is discharged in most mammals and which serves as the male genital duct | - |
| warthog | 14 | African wild swine with warty protuberances on the face and large protruding tusks | - |
| thicket | 16 | a dense growth of bushes | - |
| anthill | 10 | a mound of earth made by ants as they dig their nest | - |
| thawing | 14 | the process whereby heat changes something from a solid to a liquid | the thawing of a frozen turkey takes several hours |
| unearth | 10 | recover through digging | - |
| blather | 12 | to talk foolishly | - |
| souther | 10 | a wind from the south | - |
| thicken | 16 | make thick or thicker | - |
| wreaths | 13 | - | - |
| thistle | 10 | any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves | - |
| prithee | 12 | - | - |
| thither | 13 | to or toward that place; away from the speaker | - |
| thimble | 14 | as much as a thimble will hold | - |
| thereon | 10 | on that | text and commentary thereon |
| fathoms | 15 | - | - |
| sheaths | 13 | - | - |
| slither | 10 | to pass or move unobtrusively or smoothly | - |
| thready | 14 | forming viscous or glutinous threads | - |
| swarthy | 16 | naturally having skin of a dark color | a smile on his swarthy face |
| thumbed | 15 | (of pages) worn or soiled by thumb and fingers by frequent handling or turning | well-thumbed pages of the dictionary |
| thickly | 19 | in quick succession | - |
| azimuth | 21 | the azimuth of a celestial body is the angle between the vertical plane containing it and the plane of the meridian | - |
| rathole | 10 | a hole (as in the wall of a building) made by rats | - |
| sheathe | 13 | cover with a protective sheathing | sheathe her face |
| betroth | 12 | give to in marriage | - |
| earthen | 10 | made of earth (or baked clay) | an earthen pot |
| etheric | 12 | - | - |
| thinned | 11 | mixed with water | a cup of thinned soup |
| strewth | 13 | - | - |
| thruway | 16 | a broad highway designed for high-speed traffic | - |
| untruth | 10 | a false statement | - |
| cathode | 13 | a negatively charged electrode that is the source of electrons entering an electrical device | - |
| breathy | 15 | - | - |
| slather | 10 | spread thickly | I can't eat bagels without slathering them with cream cheese |
| thorium | 12 | a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands | - |
| writhed | 14 | twisted (especially as in pain or struggle) | writhed lips |
| bathers | 12 | - | - |
| isthmus | 12 | a cord-like tissue connecting two larger parts of an anatomical structure | - |
| naphtha | 15 | any of various volatile flammable liquid hydrocarbon mixtures; used chiefly as solvents | - |
| outwith | 13 | - | - |
| throaty | 13 | sounding as if pronounced low in the throat | a rich throaty voice |
| thermic | 14 | relating to or associated with heat | thermic energy |
| thereto | 10 | to that | with all the appurtenances fitting thereto |
| cithara | 12 | - | - |
| sukkoth | 18 | a major Jewish festival beginning on the eve of the 15th of Tishri and commemorating the shelter of the Israelites during their 40 years in the wilderness | - |
| tallith | 10 | (Judaism) a shawl with a ritually knotted fringe at each corner; worn by Jews at morning prayer | - |
| tithing | 11 | - | - |
| withing | 14 | - | - |
| benthic | 14 | of or relating to or happening on the bottom under a body of water | - |
| bethink | 16 | cause oneself to consider something | - |
| luthier | 10 | a craftsman who makes stringed instruments (as lutes or guitars or violins) | - |
| enthuse | 10 | cause to feel enthusiasm | - |
| smoothy | 15 | someone with an assured and ingratiating manner | - |
| thymine | 15 | a base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine | - |
| thiamin | 12 | a B vitamin that prevents beriberi; maintains appetite and growth | - |
| athwart | 13 | at an oblique angle | - |
| athirst | 10 | (usually followed by `for') extremely desirous | athirst for knowledge |
| bathyal | 15 | relating to ocean depths between 200 and 2000 meters (corresponds to the continental slope) | - |
| bismuth | 14 | a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically); usually recovered as a by-product from ores of other metals | - |
| esthete | 10 | one who professes great sensitivity to the beauty of art and nature | - |
| absinth | 12 | strong green liqueur flavored with wormwood and anise | - |
| sagathy | 14 | - | - |
| saithes | 10 | - | - |
| samithi | 12 | - | - |
| scouths | 12 | - | - |
| scowths | 15 | - | - |
| scarths | 12 | - | - |
| scathed | 13 | - | - |
| scathes | 12 | - | - |
| scaiths | 12 | - | - |
| scythed | 16 | - | - |
| scyther | 15 | - | - |
| scythes | 15 | - | - |
| seethed | 11 | - | - |
| seether | 10 | - | - |
| seethes | 10 | - | - |
| sheathy | 16 | - | - |
| skaiths | 14 | - | - |
| skarths | 14 | - | - |
| sithens | 10 | - | - |
| sithing | 11 | - | - |
| sixthly | 20 | in the sixth place | sixthly, we cannot afford a vacation |
| slothed | 11 | - | - |
| smooths | 12 | - | - |
| smithed | 13 | - | - |
| smeaths | 12 | - | - |
| smeeths | 12 | - | - |
| sleuths | 10 | - | - |
| soothed | 11 | - | - |
| soother | 10 | - | - |
| soothes | 10 | - | - |
| soothly | 13 | - | - |
| sneaths | 10 | - | - |
| snathes | 10 | - | - |
| spilths | 12 | - | - |
| sperthe | 12 | - | - |
| sowthed | 14 | - | - |
| southed | 11 | - | - |
| spathes | 12 | - | - |
| spathic | 14 | - | - |
| spathed | 13 | - | - |
| spathal | 12 | - | - |
| sparthe | 12 | - | - |
| sparths | 12 | - | - |
| sthenia | 10 | - | - |
| sthenic | 12 | - | - |
| staithe | 10 | - | - |
| staiths | 10 | - | - |
| straths | 10 | - | - |
| stouths | 10 | - | - |
| swathed | 14 | - | - |
| swather | 13 | - | - |
| swathes | 13 | - | - |
| swarths | 13 | - | - |
| succoth | 14 | a major Jewish festival beginning on the eve of the 15th of Tishri and commemorating the shelter of the Israelites during their 40 years in the wilderness | - |
| sunbath | 12 | - | - |
| swither | 13 | agitation resulting from active worry | - |
| swithly | 16 | - | - |
| synthon | 13 | - | - |
| rhythmi | 18 | - | - |
| rhythms | 18 | - | - |
| ruthful | 13 | feeling or expressing pain or sorrow for sins or offenses | - |
| rothers | 10 | - | - |
| routhie | 10 | - | - |
| tithers | 10 | - | - |
| trilith | 10 | - | - |
| towpath | 15 | a path along a canal or river used by animals towing boats | - |
| teethed | 11 | - | - |
| teether | 10 | - | - |
| teethes | 10 | - | - |
| tenthly | 13 | (in enumerating something, such as topics or points of discussion) in the tenth place | - |
| tathing | 11 | - | - |
| thretty | 13 | - | - |
| thrives | 13 | - | - |
| throats | 10 | - | - |
| thrombi | 14 | - | - |
| throned | 11 | - | - |
| thrones | 10 | - | - |
| throngs | 11 | - | - |
| thriver | 13 | - | - |
| thriven | 13 | - | - |
| thrifts | 13 | - | - |
| thrills | 10 | - | - |
| thrilly | 13 | - | - |
| thrimsa | 12 | - | - |
| thrists | 10 | - | - |
| thristy | 13 | - | - |
| thrived | 14 | - | - |
| throwes | 13 | - | - |
| thrummy | 17 | - | - |
| thulium | 12 | a soft silvery metallic element of the rare earth group; isotope 170 emits X-rays and is used in small portable X-ray machines; it occurs in monazite and apatite and xenotime | - |
| thumped | 15 | - | - |
| thumper | 14 | - | - |
| thunked | 15 | - | - |
| thurify | 16 | perfume especially with a censer | - |
| thwacks | 19 | - | - |
| thulite | 10 | - | - |
| thulias | 10 | - | - |
| thruput | 12 | - | - |
| thrusts | 10 | - | - |
| thrutch | 15 | - | - |
| thrymsa | 15 | - | - |
| thudded | 13 | - | - |
| thuggee | 12 | murder and robbery by thugs | - |
| thuggos | 12 | - | - |
| thwaite | 13 | - | - |
| threnos | 10 | - | - |
| thirsts | 10 | - | - |
| thistly | 13 | - | - |
| thivels | 13 | - | - |
| tholing | 11 | - | - |
| thonder | 11 | - | - |
| thirled | 11 | - | - |
| thiolic | 12 | - | - |
| thionic | 12 | - | - |
| thionin | 10 | - | - |
| thionyl | 13 | - | - |
| thirams | 12 | - | - |
| thirded | 12 | - | - |
| thonged | 12 | - | - |
| thorias | 10 | - | - |
| thorite | 10 | a radioactive mineral consisting of thorium silicate; it is a source of thorium that is found in coarse granite | - |
| thraves | 13 | - | - |
| thrawed | 14 | - | - |
| threaps | 12 | - | - |
| threats | 10 | - | - |
| threave | 13 | - | - |
| threeps | 12 | - | - |
| thrangs | 11 | - | - |
| thralls | 10 | - | - |
| thorned | 11 | - | - |
| thorons | 10 | - | - |
| thorpes | 12 | - | - |
| thother | 13 | - | - |
| thouing | 11 | - | - |
| thowels | 13 | - | - |
| threnes | 10 | - | - |
| thwarts | 13 | - | - |
| thylose | 13 | - | - |
| thymier | 15 | - | - |
| thymols | 15 | - | - |
| thyrses | 13 | - | - |
| thyrsus | 13 | a dense flower cluster (as of the lilac or horse chestnut) in which the main axis is racemose and the branches are cymose | - |
| tethers | 10 | - | - |
| thermae | 12 | - | - |
| thermel | 12 | a thermometer that uses thermoelectric current to measure temperature | - |
| thermes | 12 | - | - |
| thermit | 12 | - | - |
| theroid | 11 | - | - |
| therian | 10 | - | - |
| theriac | 12 | - | - |
| theoric | 12 | - | - |
| thereat | 10 | - | - |
| thether | 13 | - | - |
| theurgy | 14 | the effect of supernatural or divine intervention in human affairs | - |
| thewier | 13 | - | - |
| thickie | 16 | - | - |
| thickos | 16 | - | - |
| thieved | 14 | - | - |
| thigger | 12 | - | - |
| thiggit | 12 | - | - |
| thighed | 15 | - | - |
| thicker | 16 | - | - |
| thiasus | 10 | - | - |
| thiazin | 19 | - | - |
| thiazol | 19 | - | - |
| thibets | 12 | - | - |
| thibles | 12 | - | - |
| thicked | 17 | - | - |
| thiller | 10 | - | - |
| theorbo | 12 | - | - |
| thanahs | 13 | - | - |
| thangka | 15 | - | - |
| thanked | 15 | - | - |
| thankee | 14 | - | - |
| thanker | 14 | - | - |
| thannah | 13 | - | - |
| thannas | 10 | - | - |
| thatcht | 15 | - | - |
| thanage | 11 | - | - |
| thalweg | 14 | a line following the lowest points of a valley | - |
| thacked | 17 | - | - |
| thairms | 12 | - | - |
| thalami | 12 | - | - |
| thalers | 10 | - | - |
| thalian | 10 | - | - |
| thallic | 12 | - | - |
| thallus | 10 | a plant body without true stems or roots or leaves or vascular system; characteristic of the thallophytes | - |
| thatchy | 18 | - | - |
| thawers | 13 | - | - |
| thawier | 13 | - | - |
| theines | 10 | - | - |
| theisms | 12 | - | - |
| theists | 10 | - | - |
| thelves | 13 | - | - |
| themata | 12 | - | - |
| theming | 13 | - | - |
| thenage | 11 | - | - |
| thenars | 10 | - | - |
| thegnly | 14 | - | - |
| theelol | 10 | - | - |
| theaves | 13 | - | - |
| thecate | 12 | - | - |
| theeing | 11 | - | - |
| theeked | 15 | - | - |
| theelin | 10 | a naturally occurring weak estrogenic hormone secreted by the mammalian ovary; synthesized (trade name Estronol) and used to treat estrogen deficiency | - |
| theolog | 11 | - | - |
| unworth | 13 | - | - |
| unthaws | 13 | - | - |
| unthink | 14 | - | - |
| unneath | 10 | - | - |
| urolith | 10 | a urinary stone | - |
| urethan | 10 | - | - |
| upthrew | 15 | - | - |
| upthrow | 15 | (geology) a rise of land to a higher elevation (as in the process of mountain building) | - |
| vermuth | 15 | - | - |
| warmths | 15 | - | - |
| wethers | 13 | - | - |
| wealths | 13 | - | - |
| withins | 13 | - | - |
| withies | 13 | - | - |
| withier | 13 | - | - |
| turpeth | 12 | - | - |
| turbeth | 12 | - | - |
| turbith | 12 | - | - |
| trowths | 13 | - | - |
| trothed | 11 | - | - |
| ungirth | 11 | - | - |
| unfaith | 13 | - | - |
| tything | 14 | - | - |
| youthen | 13 | - | - |
| youthly | 16 | - | - |
| youngth | 14 | - | - |
| wrethed | 14 | - | - |
| wrethes | 13 | - | - |
| wreathe | 13 | form into a wreath | - |
| wreathy | 16 | - | - |
| wrythen | 16 | - | - |
| wroaths | 13 | - | - |
| writhen | 13 | twisted (especially as in pain or struggle) | my writhen features |
| writher | 13 | - | - |
| writhes | 13 | - | - |
| worthed | 14 | - | - |
| wotteth | 13 | - | - |
| wraiths | 13 | - | - |
| wrathed | 14 | - | - |
| xantham | 19 | - | - |
| xanthan | 17 | - | - |
| xanthic | 19 | - | - |
| xanthin | 17 | - | - |
| wuthers | 13 | - | - |
| zithern | 19 | a musical stringed instrument with strings stretched over a flat sounding board; it is laid flat and played with a plectrum and with fingers | - |
| zoolith | 19 | - | - |
| zithers | 19 | - | - |
| zythums | 24 | - | - |
| zeniths | 19 | - | - |
| zibeths | 21 | - | - |
| canthic | 14 | - | - |
| brothas | 12 | - | - |
| crathur | 12 | - | - |
| agunoth | 11 | - | - |
| anthros | 10 | - | - |
| bedbath | 15 | - | - |
| birther | 12 | - | - |
| huppoth | 17 | - | - |
| gothier | 11 | - | - |
| kathump | 18 | - | - |
| druther | 11 | - | - |
| othered | 11 | - | - |
| pitieth | 12 | - | - |
| lithoes | 10 | - | - |
| lythrum | 15 | loosestrife | - |
| tathata | 10 | - | - |
| truther | 10 | - | - |
| thankit | 14 | - | - |
| theocon | 12 | - | - |
| thetris | 10 | - | - |
| thigged | 13 | - | - |
| thingos | 11 | - | - |
| thrashy | 16 | - | - |
| thymoma | 17 | - | - |
| tothers | 10 | - | - |
| smoothe | 12 | - | - |
| aphthae | 15 | - | - |
| apothem | 14 | - | - |
| asthore | 10 | - | - |
| astheny | 13 | an abnormal loss of strength | - |
| asthmas | 12 | - | - |
| athodyd | 15 | a simple type of jet engine; must be launched at high speed | - |
| athrill | 10 | - | - |
| athleta | 10 | - | - |
| athames | 12 | - | - |
| athanor | 10 | a furnace that feeds itself so as to maintain a uniform temperature; used by alchemists | - |
| atheise | 10 | - | - |
| atheize | 19 | - | - |
| atheous | 10 | - | - |
| bathmat | 14 | - | - |
| bathmic | 16 | - | - |
| beathed | 13 | - | - |
| berthas | 12 | - | - |
| berthed | 13 | - | - |
| berthes | 12 | - | - |
| bemouth | 14 | - | - |
| benthos | 12 | a region including the bottom of the sea and the littoral zones | - |
| benthon | 12 | - | - |
| benthal | 12 | of or relating to or happening on the bottom under a body of water | - |
| bethank | 16 | - | - |
| bethels | 12 | - | - |
| bethorn | 12 | - | - |
| bethumb | 16 | - | - |
| bethump | 16 | - | - |
| blither | 12 | to talk foolishly | - |
| birthed | 13 | - | - |
| blether | 12 | to talk foolishly | - |
| bothans | 12 | - | - |
| bothers | 12 | - | - |
| bothies | 12 | - | - |
| bothole | 12 | - | - |
| bothria | 12 | - | - |
| breaths | 12 | - | - |
| bypaths | 17 | - | - |
| burthen | 12 | weight down with a load | - |
| canthal | 12 | - | - |
| canthus | 12 | either of the corners of the eye where the upper and lower eyelids meet | - |
| calathi | 12 | - | - |
| calthas | 12 | - | - |
| cathead | 13 | - | - |
| cathect | 14 | inject with libidinal energy | - |
| cathole | 12 | - | - |
| cathood | 13 | - | - |
| chaloth | 15 | - | - |
| aliyoth | 13 | - | - |
| alethic | 12 | - | - |
| althaea | 10 | any of various plants of the genus Althaea; similar to but having smaller flowers than genus Alcea | - |
| altheas | 10 | - | - |
| althorn | 10 | - | - |
| agoroth | 11 | - | - |
| alength | 11 | - | - |
| airthed | 11 | - | - |
| anthoid | 11 | - | - |
| anthers | 10 | - | - |
| anthems | 12 | - | - |
| anethol | 10 | - | - |
| frothed | 14 | - | - |
| frother | 13 | - | - |
| fourths | 13 | - | - |
| fothers | 13 | - | - |
| gathers | 11 | - | - |
| futharc | 15 | - | - |
| futhark | 17 | - | - |
| futhorc | 15 | - | - |
| futhork | 17 | - | - |
| galuths | 11 | - | - |
| girthed | 12 | - | - |
| graiths | 11 | - | - |
| gothics | 13 | - | - |
| gothite | 11 | a red or yellow or brown mineral; an oxide of iron that is a common constituent of rust | - |
