Words Containing the Letter O

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The letter O is the third most common vowel in English and the source of some of the language's most distinctive vowel pairs — OO (VOODOO, SCHOOL), OW (OUTDOOR, ELBOW), OI (NOISE, POINT), and OA (ROAD, GROAN) each produce unique sounds that define large word families. VOODOO, OUTDOOR, and MONOPOLY showcase O at its most memorable.

2-Letter Words Containing O(24)

bo do go ho jo lo mo no od oe of oh om on op or os ow ox oy so to wo yo

3-Letter Words Containing O(231)

abo ado ago avo azo bio boa bob bod bog boo bop bos bot bow box boy bro cob cod cog col con coo cop cor cos cot cow cox coy coz doc doe dog dol dom don dor dos dot dow duo ego eon fob foe fog foh fon fop for fou fox foy fro goa gob god goo gor got gox goy hao hob hod hoe hog hon hop hot how hoy ion job joe jog jot jow joy koa kob koi kop kor kos lob log loo lop lot low lox mho moa mob moc mod mog mol mom mon moo mop mor mos mot mow nob nod nog noh nom noo nor nos not now oaf oak oar oat obe obi oca odd ode ods oes off oft ohm oho ohs oil oka oke old ole oms one ons ooh oot ope ops opt ora orb

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4-Letter Words Containing O(1053)

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5-Letter Words Containing O(2533)

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6-Letter Words Containing O(4780)

abator abbots abhors abloom abmhos aboard aboded abodes abohms abolla abomas aboral aborts abound aboves abroad absorb abvolt acajou accord accost acnode acorns across action actors adagio adjoin adnoun adobes adobos adonis adopts adored adorer adores adorns adroit adsorb aeonic aerobe aerugo afford afloat aftosa aggros agonal agones agonic agorae agoras agorot agouti agouty ahchoo aholds ahorse aikido aiolis ajowan akimbo alamos albedo albino alcove aldols aldose algoid algors aliyos aliyot alkoxy allods allots allows alloys almond almost alnico alodia alohas aloins amadou amatol amazon amidol amigos ammino ammono amnion amoeba amoles amoral amount amours analog anatto anchor ancone angora anions annoys anodal anodes anodic anoint anoles anomic anomie anonym anopia anorak anoxia anoxic anyhow anyone aorist aortae aortal aortas aortic aoudad aplomb apnoea apodal apogee apollo apolog appose aprons arbors arbour archon ardors ardour areola areole argols argons argosy argots ariose ariosi arioso aristo arkose armors armory armour aroids

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7-Letter Words Containing O(7950)

abalone abandon abators abbotcy abdomen abettor abioses abiosis abiotic aboding abolish abollae abomasa abomasi aborted aborter abought aboulia aboulic abounds abroach abrosia abscond absolve absorbs abvolts acajous acaroid accords accosts account acerola acerose acerous acetone acetose acetous achiote acholia aciform acinose acinous acnodes acolyte aconite acrobat acrogen acromia acronic acronym acrotic actinon actions acyloin adagios adaptor adenoid adenoma adipose adipous adjoins adjoint adjourn adjuror adnouns adopted adoptee adopter adorers adoring adorned adorner adsorbs advisor aeneous aeolian aeonian aerator aerobes aerobia aerobic aerogel aerosat aerosol aerugos affords affront aftmost aftosas agamous agarose agatoid agelong agitato aglycon agnomen agnosia agonies agonise agonist agonize agoroth agoutis aground aikidos aileron airboat airdrop airflow airfoil airglow airhole airport airpost ajowans alamode alastor alation albedos albinos alcohol alcoved alcoves aldoses alencon aleuron alforja alienor aliform alimony aliquot allegro allobar allodia allonge allonym allover allowed alloxan alloyed almonds almoner almonry alodial alodium aloetic aloofly alphorn althorn altoist

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8-Letter Words Containing O(11403)

aardwolf aasvogel abalones abandons abattoir abdomens abdomina abductor abelmosk abettors abhorred abhorrer ablation ablution abnormal aboideau aboiteau abomasal abomasum abomasus aborally aborning aborters aborting abortion abortive aboulias abounded abrasion abrogate abrosias absconds absolute absolved absolver absolves absonant absorbed absorber abutilon acarpous acaulose acaulous accentor acceptor accolade accorded accorder accosted accounts accouter accoutre accustom acerolas acetones acetonic acetoxyl achiotes acholias achromat achromic acidoses acidosis acidotic acolytes aconites aconitic aconitum acoustic acrimony acrobats acrodont acrogens acrolect acrolein acrolith acromial acromion acronyms acrosome acrostic acrotism actinoid actinons actorish actuator acyloins adaption adaptors addition additory adductor adenoids adenomas adenoses adenosis adhesion adiposes adiposis adjoined adjoints adjourns adjurors adjustor admonish adnation adonises adoptees adopters adopting adoption adoptive adorable adorably adorners adorning adroiter adroitly adsorbed adsorber adulator aduncous advisors advisory advocacy advocate advowson aequorin aeration aerators aeriform aerobics aerobium aeroduct aerodyne aerofoil aerogels aerogram aerolite aerolith aerology aeronaut aeronomy aerosats aerosols aerostat afforded afforest affronts affusion

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9-Letter Words Containing O(11219)

aasvogels abandoned abandoner abattoirs abbotcies abdicator abdominal abduction abductors abelmosks abhorrent abhorrers abhorring abiogenic abjection ablations ablutions abnegator abnormals aboideaus aboideaux aboiteaus aboiteaux abolished abolisher abolishes abolition abominate aborigine abortions abounding abrasions abrogated abrogates abruption absconded absconder absoluter absolutes absolvers absolving absorbant absorbent absorbers absorbing abutilons accentors acceptors accession accessory accolades accompany accordant accorders according accordion accosting accounted accouters accoutred accoutres accretion accustoms acetoxyls achromats acidophil acidulous aconitums acoustics acrobatic acrodonts acrolects acroleins acroliths acromions acronymic acropetal acrophobe acropolis acrosomal acrosomes acrostics acrotisms actinoids activator actuation actuators acyclovir acylation adaptions addiction additions adduction adductors adenoidal adenomata adenosine adhesions adipocyte adiposity adjoining adjourned adjustors admission adnations adobelike adoptable adoptions adoration adoringly adornment adroitest adsorbate adsorbent adsorbers adsorbing adulation adulators adulatory adulthood advection advocated advocates advocator advowsons aepyornis aequorins aerations aerobatic aerobrake aerodrome aeroducts aerodynes aerofoils aerograms aerolites aeroliths aerometer aeronauts aeronomer aeronomic aeroplane aerospace aerostats aetiology affection affording afforests affronted affusions

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10-Letter Words Containing O(10176)

aardwolves abandoners abandoning abdication abdicators abductions abductores aberration abhorrence abiogenist abjections abjuration abnegation abnegators abnormally abolishers abolishing abolitions abominable abominably abominated abominates abominator aboriginal aborigines abortively aboveboard abreaction abrogating abrogation abruptions abscission absconders absconding absolutely absolutest absolution absolutism absolutist absolutive absolutize absorbable absorbance absorbancy absorbants absorbency absorbents absorption absorptive abstemious abstention abstractor accessions accomplice accomplish accordance accordions accoucheur accountant accounting accoutered accoutring accretions accusation accusatory accustomed acephalous achondrite achromatic acidophile acidophils acoelomate acoustical acquisitor acrimonies acrobatics acromegaly acrophobes acrophobia acrostical actinolite actionable actionably actionless activation activators actomyosin actuations acyclovirs acylations adaptation addictions additional adductions adenosines adenoviral adenovirus adhesional adipocytes adjourning adjunction adjuration adjuratory admiration admissions admonished admonisher admonishes admonition admonitory adolescent adoptively adorations adornments adroitness adsorbable adsorbates adsorbents adsorption adsorptive adulations adulterous adulthoods advections advisories advocacies advocating advocation advocative advocators aeciospore aerobatics aerobioses aerobiosis aerobraked aerobrakes aerodromes aerogramme aerologies aerometers aeronautic aeronomers aeronomies aeronomist aeroplanes aerosolize aerospaces affections affixation affliction

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11-Letter Words Containing O(8585)

abandonment abbreviator abdications abdominally aberrations abhorrences abhorrently abiogeneses abiogenesis abiogenists abiological abiotically abjurations ablutionary abnegations abnormality abolishable abolishment abominating abomination abominators aboriginals abortionist aboveground abreactions abrogations abscissions absolutions absolutisms absolutists absolutized absolutizes absorbances absorbingly absorptance absorptions abstentions abstentious abstraction abstractors accelerando accelerator acceptation accessional accessioned accessorial accessories accessorise accessorize acclamation acclimation accommodate accompanied accompanies accompanist accomplices accordances accordantly accordingly accoucheurs accountable accountably accountancy accountants accountings accoutering accumulator accusations accustoming acetylation achondrites achondritic achromatism achromatize acidophiles acidophilic acidulation acknowledge acoelomates acoustician acquisition acquisitors acrimonious acrocentric acromegalic acropetally acrophobias acropolises actinolites actinometer actinometry actinomyces actinomycin activations actomyosins adaptations adenomatous adiposities adjournment adjudicator adjunctions adjurations admirations admonishers admonishing admonitions adolescence adolescents adoptianism adoptionism adoptionist adorability adsorptions adulterator adumbration adventurous advertorial advocations aeciospores aepyornises aerobically aerobiology aerobraking aerodynamic aeroelastic aerogrammes aeromedical aeronautics aeronomical aeronomists aerosolized aerosolizes aerostatics aestivation aetiologies affectation affectional affectioned afficionado affiliation affirmation affixations afflictions afforesting aficionadas aficionados aftershocks afterworlds agamospermy agglomerate

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12-Letter Words Containing O(6965)

abandonments abbreviation abbreviators aberrational abolishments abolitionary abolitionism abolitionist abominations aboriginally abortionists abortiveness absoluteness absolutistic absolutizing absorbancies absorbencies absorptances absorptivity abstemiously abstractions accelerandos acceleration accelerators accentuation acceptations accessioning accessorised accessorises accessorized accessorizes acclamations acclimations accommodated accommodates accommodator accompanists accompanying accomplished accomplisher accomplishes accordionist accouchement accouterment accoutrement accretionary accumulation accumulators acetonitrile acetylations achlorhydria achlorhydric achromatisms achromatized achromatizes acidulations acknowledged acknowledges acoustically acousticians acquisitions acrocentrics acromegalics acromegalies acrostically actinometers actinometric actinomorphy actinomycete actinomycins adaptational additionally adenoviruses adjournments adjudication adjudicators adjudicatory admonishment admonitorily adolescences adolescently adoptability adoptianisms adoptionisms adoptionists adorableness adrenochrome adroitnesses adscititious adulteration adulterators adulterously adumbrations advantageous adventitious advertorials aerodynamics aeroembolism aeromagnetic aeromedicine aeronautical aerosolizing aestivations affectations affectionate afficionados affiliations affirmations aforethought afterthought agglomerated agglomerates agglutinogen aggradations aggravations aggregations agnosticisms agoraphobias agoraphobics agranulocyte agrochemical agroforester agroforestry ailurophiles ailurophobes ailurophobia airworthiest alcyonarians aldolization aldosterones algolagniacs alimentation allegorising allegorizers allegorizing allelomorphs allelopathic alleviations alliteration alloantibody alloantigens allografting allomorphism allopurinols allosauruses altercations alternations altitudinous amalgamation amalgamators

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13-Letter Words Containing O(5193)

abbreviations abiogenically abnormalities abolitionisms abolitionists abortifacient absorbability abstractional accelerations accelerometer accentuations accessorising accessorizing accommodating accommodation accommodative accommodators accompaniment accomplishers accomplishing accordionists accouchements accountancies accouterments accoutrements accreditation acculturation accumulations accustomation acetaminophen acetazolamide acetification acetonitriles acetylcholine achlorhydrias achromatizing acidification acknowledging acquisitional acrimoniously acrobatically acronymically acrylonitrile actinometries actinomorphic actinomycetes actinomycoses actinomycosis actinomycotic actualization adjudications administrator admonishingly admonishments adorabilities adrenalectomy adrenochromes adulterations adventuresome adventurously aerobiologies aerodynamical aeroembolisms aeromechanics aeromedicines affectionally affectionless affordability afforestation afterthoughts agamospermies aggiornamento agglomerating agglomeration agglomerative agglutination agglutinogens aggregational agonistically agranulocytes agrochemicals agroforesters agronomically ailurophobias airworthiness alcoholically aldolizations aldosteronism alimentations allegorically allelomorphic allelopathies alliterations allomorphisms allopolyploid allotypically amalgamations ambassadorial ambiguousness ambitiousness ameliorations aminoaciduria aminophylline amniocenteses amniocentesis amorousnesses amorphousness amortizations amphibologies amphictyonies amphidiploids amphidiploidy amphiploidies amphiprostyle amplification amyloidosises anachronistic anachronously anaerobically analogousness anaphorically anaphrodisiac anaphylactoid anchorpersons andouillettes androsterones anecdotalisms anecdotalists anecdotically anfractuosity angelologists angiographies angioplasties angiospermous anglicization animadversion animalization anisometropia anisometropic anisotropisms annexationist annihilations announcements annunciations anomalousness anonymousness anthologizers anthologizing anthophyllite anthraquinone

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14-Letter Words Containing O(3576)

abortifacients abortivenesses absolutenesses absorptivities abstemiousness abstractionism abstractionist accelerometers accommodations accompaniments accomplishable accomplishment accountability accountantship accreditations acculturations accustomations accustomedness acetaminophens acetazolamides acetifications acetylcholines achondroplasia achromatically acidifications acknowledgedly acknowledgment acrylonitriles actinomorphies actinomycetous actualizations adaptationally adenocarcinoma administration administrators adoptabilities adorablenesses adrenocortical advantageously adventitiously aerobiological aerodynamicist aeroelasticity aeronautically aerosolization affectionately afforestations aforementioned aggiornamentos agglomerations agglutinations agglutinogenic agroforestries aldosteronisms alkalinization allegorization allelomorphism alloantibodies allopatrically allopolyploids allopolyploidy allosterically allotetraploid ambassadorship ambidextrously aminoacidurias aminopeptidase aminophyllines ammonification amphibiousness amphiprostyles amplifications anaphrodisiacs anchoritically anesthesiology anglicizations animadversions animalizations anisometropias ankylosauruses annexationists anthophyllites anthraquinones anthropologies anthropologist anthropometric anthropomorphs anthropophagus antiaggression antialcoholism antibiotically anticarcinogen anticensorship anticoagulants anticommercial anticommunisms anticommunists anticonvulsant anticonvulsive anticorrosives anticorruption antidefamation antidemocratic antidepression antidromically antiformalists antigovernment antihistorical antihomosexual antilogarithms antimetabolics antimetabolite antimicrobials antimodernists antimonarchist antimonopolist antineoplastic antinomianisms antiphlogistic antipollutions antipsychotics antirecessions antireflection antiregulatory antiscorbutics antisocialists antispasmodics antisubversion antitechnology antiterrorisms antiterrorists aperiodicities aphoristically apocalypticism apocryphalness apolipoprotein apologetically apoplectically aposematically apostolicities apostrophising apostrophizing apotropaically appendectomies appendicectomy apportionments appositenesses appropriations approximations arabicizations

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15-Letter Words Containing O(2340)

absorbabilities abstractionisms abstractionists acanthocephalan acclimatization accommodatingly accommodational accomplishments accountableness accountantships acculturational acetophenetidin achondroplasias achondroplastic acknowledgement acknowledgments acrimoniousness adenocarcinomas adenohypophyses adenohypophysis administrations adrenalectomies adventurousness aerodynamically aerodynamicists aerosolizations affordabilities agranulocytoses agranulocytosis airworthinesses algorithmically alkalinizations allegoricalness allegorizations allelomorphisms allotetraploids allotetraploidy alphabetization aluminosilicate ambassadorships ambiguousnesses ambitiousnesses aminopeptidases ammonifications amorphousnesses amphidiploidies anacoluthically analogousnesses ancylostomiases ancylostomiasis anfractuosities anisotropically ankylostomiases ankylostomiasis anomalousnesses anonymousnesses anthropocentric anthropological anthropologists anthropometries anthropomorphic anthropopathism anthropophagies anthropophagous anthroposophies antiabortionist antialcoholisms antiaphrodisiac anticarcinogens anticholesterol anticholinergic anticolonialism anticolonialist anticompetitive anticonvulsants anticonvulsives anticorruptions antidepressions antidevelopment antieducational antifashionable antiferromagnet antiforeclosure antilogarithmic antimetabolites antimonarchical antimonarchists antimonopolists antinationalist antiobscenities antipornography antiprogressive antirationalism antirationalist antirationality antiromanticism antisegregation antishoplifting antispeculation antisubversions antitheoretical antitraditional antituberculous antivivisection apocalyptically apocalypticisms apolipoproteins approachability appropriateness archaeopteryxes archeologically archiepiscopate ariboflavinoses ariboflavinosis aromatherapists arrondissements arteriographies assiduousnesses assimilationism assimilationist associationisms associationists associativities astrobiologists astronautically astrophotograph astrophysically astrophysicists atheroscleroses atherosclerosis atherosclerotic atmospherically atrabiliousness atrociousnesses audaciousnesses authentications authoritatively autobiographers autobiographies autochthonously autocorrelation autographically automatizations autoradiographs autoradiography autosuggestions autotetraploids autotetraploidy autotransformer autotransfusion

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About Words Containing O

Eight O tiles per Scrabble set at 1 point each reflect the vowel's high frequency, and O is notable for generating the widest variety of vowel pair combinations of any English vowel. VOODOO uses O four times including the striking double-OO + double-OO pattern; OUTDOOR joins OUT + DOOR in a compound that doubles the O-OO sound; MONOPOLY uses O twice in a word that is itself about board game dominance. The OO sound (VOODOO, SCHOOL, FOOD, PROOF) and the OW/OU sounds (OUTDOOR, SOUND, CLOUD) are the two most productive O-vowel pair families for word game study.

•The OO vowel pair (VOODOO, SCHOOL, FOOD, PROOF) creates a distinctive spelling pattern — OO words are easy to spot and remember for Scrabble play.
•OW, OI, and OA pairs (OUTDOOR, NOISE, ROAD) each represent distinct English sounds — grouping O-pair words by sound speeds up vocabulary learning.
•MONOPOLY is a high-value vocabulary word with two O's — in Scrabble, words with multiple O's help use up surplus vowel tiles from a vowel-heavy rack.

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