10-letter words starting with O
Embark on a linguistic journey with words that begin with the letter O. This section showcases how O at the start shapes the identity and sound of various words. From commonly used terms to rare finds, explore the diverse range of words that start with O, enriching your vocabulary and appreciation for language.
| Word | Points | Definition | Sentence example |
|---|---|---|---|
| officially | 21 | with official authorization | - |
| operations | 12 | financial transactions at a brokerage; having to do with the execution of trades and keeping customer records | - |
| originally | 14 | before now | - |
| occupation | 16 | the act of occupying or taking possession of a building | occupation of a building without a certificate of occupancy is illegal |
| outrageous | 11 | greatly exceeding bounds of reason or moderation | spends an outrageous amount on entertainment |
| obligation | 13 | a personal relation in which one is indebted for a service or favor | - |
| opposition | 14 | the act of hostile groups opposing each other | the invaders encountered stiff opposition |
| optimistic | 16 | expecting the best | - |
| organizing | 21 | - | - |
| occasional | 14 | occurring on a temporary or irregular basis | an occasional worker |
| oppression | 14 | a feeling of being oppressed | - |
| overweight | 20 | usually describes a large person who is fat but has a large frame to carry it | - |
| overlooked | 18 | not taken into account | - |
| originated | 12 | - | - |
| overturned | 14 | having been turned so that the bottom is no longer the bottom | an overturned car |
| occurrence | 16 | an event that happens | - |
| orchestral | 15 | relating to or composed for an orchestra | orchestral score |
| ordinarily | 14 | under normal conditions | - |
| overloaded | 15 | loaded past capacity | - |
| oppressive | 17 | marked by unjust severity or arbitrary behavior | the oppressive government |
| obligatory | 16 | morally or legally constraining or binding | attendance is obligatory |
| overcoming | 18 | - | - |
| obituaries | 12 | - | - |
| organising | 12 | - | - |
| overheated | 17 | heated beyond a safe or desirable point | the child became overheated |
| obliterate | 12 | make undecipherable or imperceptible by obscuring or concealing | - |
| overseeing | 14 | - | - |
| overpriced | 18 | too costly for the value | overpriced items at resort shops |
| ordination | 11 | the act of ordaining; the act of conferring (or receiving) holy orders | the rabbi's family was present for his ordination |
| obstructed | 15 | shut off to passage or view or hindered from action | a partially obstructed passageway |
| overriding | 15 | having superior power and influence | - |
| omnipotent | 14 | having unlimited power | - |
| oncologist | 13 | a specialist in oncology | - |
| overtaking | 18 | going by something that is moving in order to get in front of it | - |
| ornamental | 12 | serving an esthetic rather than a useful purpose | - |
| outlandish | 14 | conspicuously or grossly unconventional or unusual | the outlandish clothes of teenagers |
| omniscient | 14 | infinitely wise | - |
| orthopedic | 18 | of or relating to orthopedics | orthopedic shoes |
| ostensibly | 15 | from appearances alone | had been ostensibly frank as to his purpose while really concealing it |
| outpatient | 12 | a patient who does not reside in the hospital where he is being treated | - |
| overcharge | 19 | place too much a load on | - |
| oftentimes | 15 | many times at short intervals | - |
| overacting | 16 | poor acting by a ham actor | - |
| overactive | 18 | more active than normal | - |
| overstated | 14 | represented as greater than is true or reasonable | - |
| observance | 17 | conformity with law or custom or practice etc. | - |
| overstayed | 17 | - | - |
| originator | 11 | someone who creates new things | - |
| obsequious | 21 | attempting to win favor from influential people by flattery | - |
| overshadow | 20 | be greater in significance than | the tragedy overshadowed the couple's happiness |
| obstetrics | 14 | the branch of medicine dealing with childbirth and care of the mother | - |
| occidental | 15 | denoting or characteristic of countries of Europe and the western hemisphere | occidental civilization |
| outclassed | 13 | decisively surpassed by something else so as to appear to be of a lower class | - |
| orientated | 11 | adjusted or located in relation to surroundings or circumstances; sometimes used in combination | - |
| outpouring | 13 | a natural flow of ground water | - |
| obediently | 16 | in an obedient manner | obediently she slipped off her right shoe and stocking |
| overvalued | 17 | - | - |
| outfielder | 14 | a fielder in cricket who is stationed in the outfield | - |
| overridden | 15 | - | - |
| overlapped | 18 | - | - |
| overeating | 14 | eating to excess (personified as one of the deadly sins) | - |
| oxygenated | 22 | - | - |
| otherworld | 17 | an abstract spiritual world beyond earthly reality | - |
| oscillator | 12 | generator that produces sonic oscillations or alternating current | - |
| outgrowing | 15 | - | - |
| oesophagus | 16 | the passage between the pharynx and the stomach | - |
| overlaying | 17 | - | - |
| overburden | 16 | an excessive burden | - |
| observable | 17 | capable of being seen or noticed | an observable change in behavior |
| outfitting | 14 | the act of renovating and fitting out a ship | - |
| overground | 15 | - | - |
| oceanfront | 15 | land bordering an ocean | - |
| officiated | 19 | - | - |
| overruling | 14 | - | - |
| ovipositor | 15 | egg-laying tubular structure at the end of the abdomen in many female insects and some fishes | - |
| odontology | 15 | the branch of medicine dealing with the anatomy and development and diseases of the teeth | - |
| offsetting | 17 | - | - |
| overpraise | 15 | praise excessively | - |
| ostracised | 13 | - | - |
| outwitting | 14 | - | - |
| oppositely | 17 | in an opposite position | - |
| overexpose | 22 | expose excessively | As a child, I was overexposed to French movies |
| overdosing | 15 | - | - |
| obligingly | 17 | in accommodation | obligingly, he lowered his voice |
| outperform | 17 | be or do something to a greater degree | This car outperforms all others in its class |
| octahedron | 16 | any polyhedron having eight plane faces | - |
| outselling | 11 | - | - |
| outshining | 14 | - | - |
| officiator | 18 | - | - |
| overrating | 14 | a calculation that results in an estimate that is too high | - |
| orphanhood | 19 | the condition of being a child without living parents | - |
| oropharynx | 25 | cavity formed by the pharynx at the back of the mouth | - |
| overfilled | 17 | - | - |
| outkeeping | 17 | - | - |
| outkicking | 21 | - | - |
| outkilling | 15 | - | - |
| outkissing | 15 | - | - |
| outlanders | 11 | - | - |
| outlashing | 14 | - | - |
| outlasting | 11 | - | - |
| outlaughed | 15 | - | - |
| outlaunced | 13 | - | - |
| outlaunces | 12 | - | - |
| outlawries | 13 | - | - |
| outleading | 12 | - | - |
| outleaping | 13 | - | - |
| outlearned | 11 | - | - |
| outlodging | 13 | - | - |
| outlooking | 15 | - | - |
| outlusters | 10 | - | - |
| outlustred | 11 | - | - |
| outlustres | 10 | - | - |
| outmanning | 13 | - | - |
| outmantled | 13 | - | - |
| outmantles | 12 | - | - |
| outmarched | 18 | - | - |
| outmarches | 17 | - | - |
| outmasters | 12 | - | - |
| outmatched | 18 | - | - |
| outmatches | 17 | - | - |
| outmeasure | 12 | - | - |
| outmodedly | 17 | - | - |
| outmuscled | 15 | - | - |
| outmuscles | 14 | - | - |
| outnighted | 15 | - | - |
| outnumbers | 14 | - | - |
| outoffices | 18 | - | - |
| outpainted | 13 | - | - |
| outpassing | 13 | - | - |
| outpassion | 12 | - | - |
| outpeeping | 15 | - | - |
| outpeering | 13 | - | - |
| outpeopled | 15 | - | - |
| outpeoples | 14 | - | - |
| outpitched | 18 | - | - |
| outpitches | 17 | - | - |
| outpitying | 16 | - | - |
| outplacers | 14 | - | - |
| outplacing | 15 | - | - |
| outplanned | 13 | - | - |
| outplaying | 16 | - | - |
| outplodded | 15 | - | - |
| outplotted | 13 | - | - |
| outpointed | 13 | - | - |
| outpolling | 13 | - | - |
| outporters | 12 | - | - |
| outpourers | 12 | - | - |
| outpowered | 16 | - | - |
| outpraying | 16 | - | - |
| outpreened | 13 | - | - |
| outpressed | 13 | - | - |
| outpresses | 12 | - | - |
| outpricing | 15 | - | - |
| outprizing | 22 | - | - |
| outproduce | 15 | - | - |
| outpromise | 14 | - | - |
| outpsyched | 21 | - | - |
| outpulling | 13 | - | - |
| outpunched | 18 | - | - |
| outpunches | 17 | - | - |
| outpursued | 13 | - | - |
| outpursues | 12 | - | - |
| outpushing | 16 | - | - |
| outputting | 13 | - | - |
| outquoting | 20 | - | - |
| outraising | 11 | - | - |
| outranging | 12 | - | - |
| outranking | 15 | - | - |
| outreached | 16 | - | - |
| outreaches | 15 | - | - |
| outreading | 12 | - | - |
| outreasons | 10 | - | - |
| outrebound | 13 | - | - |
| outreckons | 16 | - | - |
| outreddens | 12 | - | - |
| outredding | 13 | - | - |
| outreigned | 12 | - | - |
| outreliefs | 13 | - | - |
| outridings | 12 | - | - |
| outriggers | 12 | - | - |
| outrigging | 13 | - | - |
| outrightly | 17 | - | - |
| outringing | 12 | - | - |
| outrivaled | 14 | - | - |
| outroaring | 11 | - | - |
| outrocking | 17 | - | - |
| outrolling | 11 | - | - |
| outroopers | 12 | - | - |
| outrooting | 11 | - | - |
| outrunners | 10 | - | - |
| outrunning | 11 | - | - |
| outrushing | 14 | - | - |
| outsailing | 11 | - | - |
| outsavored | 14 | - | - |
| outsavours | 13 | - | - |
| outschemed | 18 | - | - |
| outschemes | 17 | - | - |
| outscolded | 14 | - | - |
| outscooped | 15 | - | - |
| outscoring | 13 | - | - |
| outscorned | 13 | - | - |
| outscreams | 14 | - | - |
| outserving | 14 | - | - |
| outsetting | 11 | - | - |
| outshaming | 16 | - | - |
| outshouted | 14 | - | - |
| outsinging | 12 | - | - |
| outsinning | 11 | - | - |
| outsitting | 11 | - | - |
| outskating | 15 | - | - |
| outslicked | 17 | - | - |
| outsmarted | 13 | - | - |
| outsmelled | 13 | - | - |
| outsmiling | 13 | - | - |
| outsmoking | 17 | - | - |
| outsnoring | 11 | - | - |
| outsoaring | 11 | - | - |
| outsourced | 13 | - | - |
| outsourcer | 12 | - | - |
| outsources | 12 | - | - |
| outspanned | 13 | - | - |
| outsparkle | 16 | - | - |
| outspeckle | 18 | - | - |
| outspeeded | 14 | - | - |
| outspelled | 13 | - | - |
| outsported | 13 | - | - |
| outspreads | 13 | - | - |
| outsprings | 13 | - | - |
| outsprints | 12 | - | - |
| outstaring | 11 | - | - |
| outstarted | 11 | - | - |
| outstating | 11 | - | - |
| outstation | 10 | a station in a remote or sparsely populated location | - |
| outstaying | 14 | - | - |
| outsteered | 11 | - | - |
| outstepped | 15 | - | - |
| outstrains | 10 | - | - |
| outstretch | 15 | - | - |
| outstrided | 12 | - | - |
| outstrides | 11 | - | - |
| outstrikes | 14 | - | - |
| outstriven | 13 | - | - |
| outstrives | 13 | - | - |
| outstrokes | 14 | - | - |
| outstudied | 12 | - | - |
| outstudies | 11 | - | - |
| outstunted | 11 | - | - |
| outsulking | 15 | - | - |
| outsumming | 15 | - | - |
| outsweeten | 13 | - | - |
| outswelled | 14 | - | - |
| outswinger | 14 | - | - |
| outswollen | 13 | - | - |
| outtalking | 15 | - | - |
| outtasking | 15 | - | - |
| outtelling | 11 | - | - |
| outthanked | 18 | - | - |
| outthieved | 17 | - | - |
| outthieves | 16 | - | - |
| outthought | 17 | - | - |
| outthrusts | 13 | - | - |
| outtongued | 12 | - | - |
| outtongues | 11 | - | - |
| outtopping | 15 | - | - |
| outtowered | 14 | - | - |
| outtrading | 12 | - | - |
| outtravels | 13 | - | - |
| outtricked | 17 | - | - |
| outtrotted | 11 | - | - |
| outtrumped | 15 | - | - |
| outvaluing | 14 | - | - |
| outvaunted | 14 | - | - |
| outvenomed | 16 | - | - |
| outvillain | 13 | - | - |
| outvoicing | 16 | - | - |
| outwaiting | 14 | - | - |
| outwalking | 18 | - | - |
| outwarring | 14 | - | - |
| outwasting | 14 | - | - |
| outwatched | 19 | - | - |
| outwatches | 18 | - | - |
| outwearied | 14 | - | - |
| outwearies | 13 | - | - |
| outwearing | 14 | - | - |
| outweeding | 15 | - | - |
| outweeping | 16 | - | - |
| outweighed | 18 | - | - |
| outwelling | 14 | - | - |
| outwhirled | 17 | - | - |
| outwicking | 20 | - | - |
| outwilling | 14 | - | - |
| outwinding | 15 | - | - |
| outwinging | 15 | - | - |
| outwinning | 14 | - | - |
| outwishing | 17 | - | - |
| outworkers | 17 | - | - |
| outworking | 18 | - | - |
| outworthed | 17 | - | - |
| outwrested | 14 | - | - |
| outwrestle | 13 | - | - |
| outwriting | 14 | - | - |
| outwritten | 13 | - | - |
| outwrought | 17 | - | - |
| outyelling | 14 | - | - |
| outyelping | 16 | - | - |
| outyielded | 15 | - | - |
| ouvirandra | 14 | - | - |
| ovalbumins | 17 | - | - |
| ovalnesses | 13 | - | - |
| ovariotomy | 18 | - | - |
| ovaritides | 14 | - | - |
| ovaritises | 13 | - | - |
| overabound | 16 | - | - |
| overaction | 15 | - | - |
| overadjust | 21 | - | - |
| overarched | 19 | - | - |
| overarches | 18 | - | - |
| overarming | 16 | - | - |
| overassert | 13 | - | - |
| overassess | 13 | - | - |
| overbaking | 20 | - | - |
| overbeaten | 15 | - | - |
| overbetted | 16 | - | - |
| overbidden | 17 | - | - |
| overbidder | 17 | - | - |
| overbilled | 16 | - | - |
| overbleach | 20 | - | - |
| overblouse | 15 | - | - |
| overboiled | 16 | - | - |
| overboldly | 19 | - | - |
| overbooked | 20 | - | - |
| overborrow | 18 | - | - |
| overbought | 19 | - | - |
| overbounds | 16 | - | - |
| overbraked | 20 | - | - |
| overbrakes | 19 | - | - |
| overbreeds | 16 | - | - |
| overbridge | 17 | - | - |
| overbriefs | 18 | - | - |
| overbright | 19 | - | - |
| overbrowed | 19 | - | - |
| overbrowse | 18 | - | - |
| overbrutal | 15 | - | - |
| overbuilds | 16 | - | - |
| overbulked | 20 | - | - |
| overburned | 16 | - | - |
| overbusied | 16 | - | - |
| overbusies | 15 | - | - |
| overbuying | 19 | - | - |
| overcalled | 16 | - | - |
| overcanopy | 20 | - | - |
| overcasted | 16 | - | - |
| overcaught | 19 | - | - |
| overchecks | 24 | - | - |
| overchills | 18 | - | - |
| overclaims | 17 | - | - |
| overcleans | 15 | - | - |
| overclears | 15 | - | - |
| overclever | 18 | - | - |
| overclocks | 21 | - | - |
| overclouds | 16 | - | - |
| overcloyed | 19 | - | - |
| overcolors | 15 | - | - |
| overcolour | 15 | - | - |
| overcomers | 17 | - | - |
| overcommit | 19 | - | - |
| overcooked | 20 | - | - |
| overcooled | 16 | - | - |
| overcounts | 15 | - | - |
| overcovers | 18 | - | - |
| overcrawed | 19 | - | - |
| overcrowds | 19 | - | - |
| overcrowed | 19 | - | - |
| overcuring | 16 | - | - |
| overdaring | 15 | - | - |
| overdecked | 21 | - | - |
| overdesign | 15 | - | - |
| overdirect | 16 | - | - |
| overdosage | 15 | - | - |
| overteemed | 16 | - | - |
| overriders | 14 | - | - |
| overripens | 15 | - | - |
| overroasts | 13 | - | - |
| overruffed | 20 | - | - |
| overrulers | 13 | - | - |
| overrunner | 13 | - | - |
| oversailed | 14 | - | - |
| oversalted | 14 | - | - |
| oversauced | 16 | - | - |
| oversauces | 15 | - | - |
| oversaving | 17 | - | - |
| overscaled | 16 | - | - |
| overscored | 16 | - | - |
| overscores | 15 | - | - |
| overseeded | 15 | - | - |
| oversewing | 17 | - | - |
| overshaded | 18 | - | - |
| overshades | 17 | - | - |
| overshared | 17 | - | - |
| overshares | 16 | - | - |
| overshines | 16 | - | - |
| overshirts | 16 | - | - |
| overshoots | 16 | - | - |
| overshower | 19 | - | - |
| oversights | 17 | - | - |
| oversimple | 17 | - | - |
| oversimply | 20 | - | - |
| oversizing | 23 | - | - |
| overskated | 18 | - | - |
| overskates | 17 | - | - |
| overskirts | 17 | - | - |
| overslaugh | 17 | - | - |
| oversleeps | 15 | - | - |
| oversleeve | 16 | - | - |
| oversmoked | 20 | - | - |
| oversmokes | 19 | - | - |
| oversoaked | 18 | - | - |
| oversowing | 17 | - | - |
| overspends | 16 | - | - |
| overspiced | 18 | - | - |
| overspices | 17 | - | - |
| overspills | 15 | - | - |
| overspread | 16 | spread across or over | - |
| overstaffs | 19 | - | - |
| overstains | 13 | - | - |
| overstands | 14 | - | - |
| overstared | 14 | - | - |
| overstares | 13 | - | - |
| overstates | 13 | - | - |
| overstayer | 16 | - | - |
| oversteers | 13 | - | - |
| overstinks | 17 | - | - |
| overstocks | 19 | - | - |
| overstored | 14 | - | - |
| overstorey | 16 | - | - |
| overstrain | 13 | strain excessively | - |
| overstress | 13 | place special or excessive emphasis on | - |
| overstrewn | 16 | - | - |
| overstrews | 16 | - | - |
| overstride | 14 | - | - |
| overstrike | 17 | - | - |
| overstrode | 14 | - | - |
| overstrong | 14 | - | - |
| overstruck | 19 | - | - |
| overstrung | 14 | being in a tense state | - |
| overstuffs | 19 | - | - |
| oversubtle | 15 | - | - |
| oversudsed | 15 | - | - |
| oversudses | 14 | - | - |
| oversupped | 18 | - | - |
| oversupply | 20 | supply with an excess of | - |
| overswayed | 20 | - | - |
| overswears | 16 | - | - |
| overswells | 16 | - | - |
| overswings | 17 | - | - |
| overtalked | 18 | - | - |
| overtasked | 18 | - | - |
| overtaught | 17 | - | - |
| overtaxing | 21 | - | - |
| overwisely | 19 | - | - |
| ozonolysis | 22 | - | - |
| ozonolyses | 22 | - | - |
| ozonations | 19 | - | - |
| ozokerites | 23 | - | - |
| ozocerites | 21 | - | - |
| oysterings | 14 | - | - |
| oxyuriasis | 20 | - | - |
| oxyuriases | 20 | - | - |
| oxymoronic | 24 | - | - |
| oxygenless | 21 | - | - |
| oxygenizes | 30 | - | - |
| oxygenizer | 30 | - | - |
| oxygenized | 31 | - | - |
| oxygenises | 21 | - | - |
| oxygeniser | 21 | - | - |
| oxygenised | 22 | - | - |
| oxygenator | 21 | - | - |
| oxygenates | 21 | - | - |
| oxygenases | 21 | - | - |
| oxycodones | 23 | - | - |
| oxycephaly | 30 | a congenital abnormality of the skull; the top of the skull assumes a cone shape | - |
| oximetries | 19 | - | - |
| oxidizable | 29 | capable of undergoing a chemical reaction with oxygen | - |
| oxidisable | 20 | - | - |
| oxidimetry | 23 | - | - |
| oxidations | 18 | - | - |
| oxacillins | 19 | - | - |
| owrecoming | 18 | - | - |
| ownerships | 18 | - | - |
| owlishness | 16 | - | - |
| owerloupit | 15 | - | - |
| owerloupen | 15 | - | - |
| ovulations | 13 | - | - |
| oviraptors | 15 | - | - |
| oviposited | 16 | - | - |
| overyeared | 17 | - | - |
| overwrites | 16 | - | - |
| overwrests | 16 | - | - |
| overworked | 21 | - | - |
| overtopped | 18 | - | - |
