Words That Start with COS

Browse 134 playable English words starting with the prefix COS, including Cost, Costume, Cosmetic, Cosmetics, Cosmic, Costly and Cosmos. Validated for Scrabble, Wordle, crosswords, and daily writing, each entry includes letter counts and definitions below.

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Starts with COS
1 words
cos
Starts with COSC5 words
coscoroba
coscript
coscenarist
coscinomancy
coscinodiscaceae
Starts with COSE6 words
cosecant
coseismic
coset
cose
coseismal
cosentient
Starts with COSH5 words
cosh
cosher
coshering
coshery
cosherer
Starts with COSI5 words
cosine
cosign
cosigner
cosignatory
cosignificative
Starts with COSM24 words
cosmetic
cosmetics
cosmic
cosmos
cosmopolitan
cosmological
cosmology
cosmetically
cosmo
cosmetology
cosmetologist
cosmopolitanism
cosmologist
cosmically
cosmonaut
cosmopolite
cosmologically
cosmical
cosmonautics
cosmogony
cosmeceutical
cosmodrome
cosmetician
cosmogenic
Starts with COSP4 words
cosplay
cosponsor
cosplayer
cosponsorship
Starts with COSS3 words
cossack
cosset
cossie
Starts with COST24 words
cost
costume
costly
costing
costar
costa
costuming
costumer
costless
costliness
costal
costumey
costermonger
coster
costive
costumery
costumier
costlessly
costally
costard
costus
costiveness
costmary
costodiaphragmatic
Starts with COSU2 words
cosurfactant
cosumnes
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Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.