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Words starting with CO (10-letter)

A curated list of 10-letter words tailored to this exact pattern. When a clue points to CO starts, alternate vowel patterns and common blends after the prefix. For example: coacervate, coachworks, coadjutors.

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866 words

Word	Length	Syllables
coacervate	10	3
coachworks	10	2
coadjutors	10	3
coadjutrix	10	3
coadmiring	10	3
coadmitted	10	3
coagencies	10	3
coagulable	10	3
coagulants	10	3
coagulases	10	4
coagulated	10	4
coagulates	10	4
coalescent	10	3
coalescing	10	3
coalfields	10	2
coalfishes	10	3
coalifying	10	3
coalitions	10	3
coanchored	10	3
coannexing	10	3
coappeared	10	3
coaptation	10	3
coarseness	10	3
coarsening	10	3
coassisted	10	3
coassuming	10	3
coastguard	10	2
coastlands	10	2
coastlines	10	3
coastwards	10	2
coatimundi	10	4
coattended	10	3
coattested	10	3
coauthored	10	3
cobalamins	10	4
cobaltines	10	4
cobaltites	10	4
cobwebbier	10	3
cobwebbing	10	3
cocainized	10	4
cocainizes	10	4
cocaptains	10	3
cocatalyst	10	4
cochairing	10	3
cochairman	10	3
cochairmen	10	3
cochampion	10	3
cochineals	10	3
cockalorum	10	4
cockamamie	10	3
cockatiels	10	3
cockatrice	10	3
cockbilled	10	3
cockchafer	10	3
cockeyedly	10	3
cockfights	10	2
cockhorses	10	3
cockleburs	10	3
cockneyish	10	2
cockneyism	10	2
cockscombs	10	2
cocksfoots	10	2
cocksucker	10	3
cocksurely	10	4
cocktailed	10	3
cocomposer	10	4
cocoonings	10	3
cocounsels	10	3
cocreating	10	3
cocreators	10	3
cocultured	10	4
cocultures	10	4
cocurators	10	4
coderiving	10	4
codesigned	10	4
codevelops	10	4
codicology	10	5
codirected	10	4
codirector	10	4
codiscover	10	4
codominant	10	4
codswallop	10	3
coelacanth	10	3
coelentera	10	4
coelomates	10	4
coembodied	10	3
coembodies	10	3
coemployed	10	2
coenacting	10	3
coenamored	10	4
coenduring	10	3
coenobites	10	4
coenocytes	10	4
coenocytic	10	4
coequality	10	4
coequating	10	3
coercively	10	4
coercivity	10	4
coerecting	10	3
coetaneous	10	3
coevolving	10	3
coexecutor	10	4
coexerting	10	3
coexistent	10	3
coexisting	10	3
coextended	10	3
cofavorite	10	4
cofeatured	10	4
cofeatures	10	4
coffeecake	10	3
coffeepots	10	3
cofferdams	10	3
cofinanced	10	4
cofinances	10	4
cofounders	10	3
cofounding	10	3
cofunction	10	3
cogitating	10	4
cogitation	10	4
cogitative	10	4
cognations	10	3
cognitions	10	3
cognizable	10	3
cognizably	10	4
cognizance	10	3
cognominal	10	4
cohabitant	10	4
cohabiting	10	4
coherences	10	4
coherently	10	4
cohesively	10	5
cohobating	10	4
cohomology	10	5
coiffeuses	10	3
coiffuring	10	3
coincident	10	3
coinciding	10	3
coinferred	10	3
coinhering	10	3
coinsurers	10	3
coinsuring	10	3
cointerred	10	3
coinvented	10	3
coinventor	10	3
coinvestor	10	3
colatitude	10	4
colcannons	10	3
colchicine	10	3
colchicums	10	3
coldcocked	10	3
coldnesses	10	3
colemanite	10	4
coleoptera	10	4
coleoptile	10	3
coleorhiza	10	4
colicroots	10	3
coliphages	10	4
collagists	10	3
collapsing	10	3
collarbone	10	3
collarless	10	3
collateral	10	4
collations	10	3
colleagues	10	3
collecting	10	3
collection	10	3
collective	10	3
collectors	10	3
collegians	10	3
collegiate	10	3
collegiums	10	3
collieries	10	3
colligated	10	4
colligates	10	4
collimated	10	4
collimates	10	4
collimator	10	4
collisions	10	3
collocated	10	4
collocates	10	4
collodions	10	3
colloguing	10	3
colloquial	10	3
colloquies	10	3
colloquist	10	3
colloquium	10	3
collotypes	10	4
collusions	10	3
colluviums	10	3
collyriums	10	3
colobomata	10	5
colocating	10	4
colocynths	10	3
colonially	10	4
colonising	10	4
colonizers	10	4
colonizing	10	4
colonnaded	10	4
colonnades	10	4
coloration	10	4
coloratura	10	5
colorblind	10	3
colorectal	10	4
colorfully	10	4
coloristic	10	4
colorizing	10	4
colorpoint	10	3
colossally	10	4
colosseums	10	3
colossuses	10	4
colostrums	10	3
colotomies	10	4
colpitises	10	4
colportage	10	3
colporteur	10	3
coltsfoots	10	2
columbaria	10	4
columbines	10	4
columbites	10	4
columbiums	10	3
columellae	10	3
columellar	10	4
columnists	10	3
comanagers	10	4
comanaging	10	4
combatants	10	3
combatting	10	3
combinable	10	3
combusting	10	3
combustion	10	3
combustive	10	3
combustors	10	3
comedienne	10	3
comeliness	10	4
comestible	10	3
comforters	10	3
comforting	10	3
comicality	10	5
comingling	10	3
commandant	10	3
commandeer	10	3
commanders	10	3
commandery	10	4
commanding	10	3
commandoes	10	3
commencers	10	3
commencing	10	3
commenders	10	3
commending	10	3
commensals	10	3
commentary	10	4
commentate	10	3
commenting	10	3
commercial	10	3
commercing	10	3
commingled	10	3
commingles	10	3
comminuted	10	4
comminutes	10	4
commissars	10	3
commissary	10	4
commission	10	3
commissure	10	3
commitment	10	3
committals	10	3
committees	10	3
committing	10	3
commixture	10	3
commodious	10	3
commodores	10	4
commonages	10	4
commonalty	10	4
commonness	10	3
commonweal	10	3
commotions	10	3
communally	10	4
communards	10	3
communions	10	3
communique	10	3
communised	10	4
communises	10	4
communisms	10	3
communists	10	3
communized	10	4
communizes	10	4
commutable	10	3
commutated	10	4
commutates	10	4
commutator	10	4
comonomers	10	4
compacters	10	3
compactest	10	3
compacting	10	3
compaction	10	3
compactors	10	3
companions	10	3
companying	10	3
comparable	10	3
comparably	10	4
comparator	10	4
comparison	10	4
comparting	10	3
compassing	10	3
compassion	10	3
compatible	10	3
compatibly	10	4
compatriot	10	3
compeering	10	3
compelling	10	3
compendium	10	3
compensate	10	3
competence	10	3
competency	10	4
competitor	10	4
complacent	10	3
complained	10	3
complainer	10	3
complaints	10	2
complected	10	3
complement	10	3
completely	10	4
completest	10	3
completing	10	3
completion	10	3
completist	10	3
completive	10	3
complexest	10	3
complexify	10	4
complexing	10	3
complexion	10	3
complexity	10	4
compliance	10	2
compliancy	10	3
complicacy	10	4
complicate	10	3
complicity	10	4
compliment	10	3
complotted	10	3
components	10	3
comporting	10	3
composedly	10	4
composited	10	4
composites	10	4
compositor	10	4
composting	10	3
composures	10	4
compounded	10	3
compounder	10	3
compradore	10	3
compradors	10	3
comprehend	10	3
compressed	10	3
compresses	10	3
compressor	10	3
comprising	10	3
comprizing	10	3
compromise	10	3
compulsion	10	3
compulsive	10	3
compulsory	10	4
computable	10	3
concealers	10	3
concealing	10	3
concededly	10	4
conceiting	10	3
conceivers	10	3
conceiving	10	3
concenters	10	3
concentric	10	3
conception	10	3
conceptive	10	3
conceptual	10	3
concerning	10	3
concertina	10	4
concerting	10	3
concertino	10	4
concertize	10	3
concession	10	3
concessive	10	3
conchoidal	10	3
conchology	10	4
concierges	10	3
conciliate	10	3
concinnity	10	4
concisions	10	3
concluders	10	3
concluding	10	3
conclusion	10	3
conclusive	10	3
conclusory	10	4
concocters	10	3
concocting	10	3
concoction	10	3
concoctive	10	3
concordant	10	3
concordats	10	3
concourses	10	3
concretely	10	4
concreting	10	3
concretion	10	3
concretism	10	3
concretist	10	3
concretize	10	3
concubines	10	4
concurrent	10	3
concurring	10	3
concussing	10	3
concussion	10	3
concussive	10	3
condemners	10	3
condemning	10	3
condemnors	10	3
condensate	10	3
condensers	10	3
condensing	10	3
condescend	10	3
condiments	10	3
conditions	10	3
condolence	10	3
condonable	10	3
conducting	10	3
conduction	10	3
conductive	10	3
conductors	10	3
condylomas	10	4
coneflower	10	4
confabbing	10	3
confecting	10	3
confection	10	3
confederal	10	4
conference	10	3
conferment	10	3
conferrals	10	3
conferrers	10	3
conferring	10	3
confessing	10	3
confession	10	3
confessors	10	3
confidante	10	3
confidants	10	3
confidence	10	3
configured	10	4
configures	10	4
confirmand	10	3
confirming	10	3
confiscate	10	3
confiteors	10	3
confitures	10	4
conflating	10	3
conflation	10	3
conflicted	10	3
confluence	10	2
confluents	10	2
confocally	10	4
conformers	10	3
conforming	10	3
conformism	10	3
conformist	10	3
conformity	10	4
confounded	10	3
confounder	10	3
confrontal	10	3
confronted	10	3
confronter	10	3
confusedly	10	4
confusions	10	3
congealing	10	3
congeneric	10	4
congenital	10	4
congesting	10	3
congestion	10	3
congestive	10	3
conglobate	10	3
conglobing	10	3
congregant	10	3
congregate	10	3
congressed	10	3
congresses	10	3
congruence	10	2
congruency	10	3
conicities	10	4
coniferous	10	4
conjecture	10	3
conjoining	10	3
conjointly	10	3
conjugally	10	4
conjugants	10	3
conjugated	10	4
conjugates	10	4
connatural	10	4
connecters	10	3
connecting	10	3
connection	10	3
connective	10	3
connectors	10	3
connexions	10	3
conniption	10	3
connivance	10	3
conominees	10	4
conquering	10	3
conquerors	10	3
conscience	10	2
conscribed	10	3
conscribes	10	3
conscripts	10	2
consecrate	10	3
consensual	10	3
consenters	10	3
consenting	10	3
consequent	10	3
conservers	10	3
conserving	10	3
considered	10	4
consignees	10	3
consigning	10	3
consignors	10	3
consistent	10	3
consisting	10	3
consistory	10	4
consociate	10	3
consonance	10	3
consonancy	10	4
consonants	10	3
consorting	10	3
consortium	10	3
conspectus	10	3
conspiracy	10	4
conspiring	10	3
constables	10	3
constantan	10	3
constantly	10	3
constative	10	3
constipate	10	3
constitute	10	3
constrains	10	2
constraint	10	2
constricts	10	2
constringe	10	2
constructs	10	2
construing	10	2
consuetude	10	3
consulates	10	4
consulship	10	3
consultant	10	3
consulters	10	3
consulting	10	3
consultive	10	3
consultors	10	3
consumable	10	3
consumedly	10	4
consummate	10	3
contacting	10	3
contagions	10	3
contagious	10	3
containers	10	3
containing	10	3
contemners	10	3
contemning	10	3
contemnors	10	3
contenders	10	3
contending	10	3
contenting	10	3
contention	10	3
contestant	10	3
contesters	10	3
contesting	10	3
contextual	10	3
contexture	10	3
contiguity	10	4
contiguous	10	3
continence	10	3
continents	10	3
contingent	10	3
continuant	10	3
continuate	10	3
continuers	10	3
continuing	10	3
continuity	10	4
continuous	10	3
continuums	10	3
contorting	10	3
contortion	10	3
contortive	10	3
contouring	10	3
contraband	10	3
contrabass	10	3
contracted	10	3
contractor	10	3
contradict	10	3
contraltos	10	3
contrarian	10	3
contraries	10	3
contrarily	10	4
contrasted	10	3
contravene	10	3
contribute	10	3
contritely	10	4
contrition	10	3
contrivers	10	3
contriving	10	3
controlled	10	3
controller	10	3
controvert	10	3
contusions	10	3
conundrums	10	3
convalesce	10	3
convecting	10	3
convection	10	3
convective	10	3
convectors	10	3
convenient	10	3
conventing	10	3
convention	10	3
conventual	10	3
convergent	10	3
converging	10	3
conversant	10	3
conversely	10	4
conversers	10	3
conversing	10	3
conversion	10	3
converters	10	3
converting	10	3
convertors	10	3
conveyance	10	2
convicting	10	3
conviction	10	3
convincers	10	3
convincing	10	3
convoluted	10	4
convolutes	10	4
convolving	10	3
convolvuli	10	4
convulsant	10	3
convulsing	10	3
convulsion	10	3
convulsive	10	3
cookhouses	10	3
cookshacks	10	2
cookstoves	10	3
coolheaded	10	3
coolnesses	10	3
coonhounds	10	2
cooperages	10	4
cooperated	10	4
cooperates	10	4
cooperator	10	4
coordinate	10	3
coparcener	10	4
copartners	10	3
copayments	10	3
copestones	10	4
coplotting	10	3
copolymers	10	4
copperases	10	4
copperhead	10	3
copresents	10	3
coprisoner	10	4
coproduced	10	4
coproducer	10	4
coproduces	10	4
coproducts	10	3
coprolites	10	4
coprolitic	10	4
copromoter	10	4
coprophagy	10	4
copulating	10	4
copulation	10	4
copulative	10	4
copulatory	10	5
copurified	10	4
copurifies	10	4
copycatted	10	4
copyedited	10	4
copyholder	10	4
copyreader	10	4
copyrights	10	3
copywriter	10	4
coquetries	10	3
coquetting	10	3
coquettish	10	3
coralbells	10	3
coralberry	10	4
corallines	10	4
corbeilles	10	3
corbelings	10	3
corbelling	10	3
corbiculae	10	3
cordelling	10	3
cordiality	10	4
cordierite	10	3
cordillera	10	4
corduroyed	10	3
cordwainer	10	3
coredeemed	10	4
corelating	10	4
coresident	10	4
coriaceous	10	3
corianders	10	3
corkboards	10	2
corkscrews	10	2
cormorants	10	3
cornbreads	10	2
corncrakes	10	3
cornelians	10	3
cornerback	10	3
cornerways	10	3
cornerwise	10	3
cornetcies	10	3
cornetists	10	3
cornettist	10	3
cornfields	10	2
cornflakes	10	3
cornflower	10	3
cornhusker	10	3
cornrowing	10	3
cornstalks	10	2
cornstarch	10	2
cornucopia	10	4
coromandel	10	4
coronaries	10	4
coronating	10	4
coronation	10	4
corotating	10	4
corotation	10	4
corporally	10	4
corporator	10	4
corporeity	10	4
corposants	10	3
corpulence	10	3
corpulency	10	4
corpuscles	10	3
corralling	10	3
corrasions	10	3
correctest	10	3
correcting	10	3
correction	10	3
corrective	10	3
correctors	10	3
correlated	10	4
correlates	10	4
correlator	10	4
correspond	10	3
corrigenda	10	4
corrigible	10	3
corroboree	10	3
corrodible	10	3
corrosions	10	3
corrosives	10	4
corrugated	10	4
corrugates	10	4
corrupters	10	3
corruptest	10	3
corrupting	10	3
corruption	10	3
corruptive	10	3
corruptors	10	3
corselette	10	3
corsetiere	10	3
corsetries	10	3
cortically	10	4
corticoids	10	3
cortisones	10	4
coruscated	10	4
coruscates	10	4
corybantes	10	4
corybantic	10	4
coryneform	10	4
coryphaeus	10	3
coscripted	10	3
cosinesses	10	4
cosmically	10	4
cosmogenic	10	4
cosmogonic	10	4
cosmonauts	10	3
cosmopolis	10	4
cosponsors	10	3
costarring	10	3
costlessly	10	3
costliness	10	3
costmaries	10	3
costumiers	10	3
cotangents	10	3
cotillions	10	3
cotransfer	10	3
cotrustees	10	3
cotterless	10	3
cottonseed	10	3
cottontail	10	3
cottonweed	10	3
cottonwood	10	3
cotyledons	10	4
cotylosaur	10	4
coulometer	10	4
coulometry	10	4
councillor	10	3
councilman	10	3
councilmen	10	3
councilors	10	3
counselees	10	3
counseling	10	3
counselled	10	3
counsellor	10	3
counselors	10	3
countdowns	10	2
counteract	10	3
counterbid	10	3
countercry	10	3
countering	10	3
counterion	10	3
counterman	10	3
countermen	10	3
counterspy	10	3
countersue	10	2
countertop	10	3
countesses	10	3
countryish	10	2
countryman	10	3
countrymen	10	3
couplement	10	3
couponings	10	3
courageous	10	3
courantoes	10	3
courgettes	10	3
courseware	10	3
courtesans	10	3
courtesied	10	3
courtesies	10	3
courthouse	10	2
courtliest	10	2
courtrooms	10	2
courtships	10	2
courtsides	10	3
courtyards	10	2
couscouses	10	3
cousinages	10	4
cousinhood	10	3
cousinries	10	3
cousinship	10	3
couturiere	10	3
couturiers	10	3
covalences	10	4
covalently	10	4
covariance	10	3
covellines	10	4
covellites	10	4
covenantal	10	4
covenanted	10	4
covenantee	10	3
covenanter	10	4
covenantor	10	4
coveralled	10	4
coverslips	10	3
covertness	10	3
covertures	10	4
covetingly	10	4
covetously	10	4
cowardices	10	4
cowberries	10	3
cowcatcher	10	3
cowlstaffs	10	2
cowlstaves	10	3
cowpuncher	10	3
coxswained	10	3
coyotillos	10	3
cozinesses	10	4

FAQs

Are CO-starting words common?
CO is a frequent start; probing vowel swaps after CO quickly narrows options.

Is this list good for crosswords?
Yes—filter by length mentally and scan definitions when available.