Words That Start With COS

There are over 265 words that begin with COS in English. From 3-letter words to 15-letter entries, find COS-words grouped and sortable by length below, all valid in Scrabble, Wordle, and Words With Friends. You can also see five letter words starting with COS.

3-Letter Words Starting With COS

Short high-frequency COS-words:

cos

4-Letter Words Starting With COS

Common 4-letter COS-words:

cost

cose

cosh

coss

cosy

See all 4-letter COS-words

5-Letter Words Starting With COS

Common 5-letter COS-words:

costs

costa

cosec

cosed

coses

coset

cosey

cosie

cosmo

coste

See all 5-letter COS-words

6-Letter Words Starting With COS

Common 6-letter COS-words:

costly

cosmic

cosech

cosecs

cosets

coseys

coshed

cosied

cosier

cosies

cosily

cosing

cosmea

cosmid

cosses

costae

costal

costed

costes

costus

See all 6-letter COS-words

7-Letter Words Starting With COS

Common 7-letter COS-words:

costume

coshers

cosiers

cosiest

cosigns

cosines

cosmeas

cosmids

cosmism

cosmoid

cossack

cossets

cossies

costals

costard

costate

costean

costers

costive

costrel

See all 7-letter COS-words

8-Letter Words Starting With COS

Common 8-letter COS-words:

costumes

cosigned

cosmeses

cosmesis

cosmetic

cosmines

cosmisms

cosmists

cosmoses

costally

costards

costated

costeans

costings

costless

costlier

costrels

costumed

costumey

costuses

See all 8-letter COS-words

9-Letter Words Starting With COS

Common 9-letter COS-words:

coscripts

coseismal

coseismic

cosherers

cosheries

coshering

cosigners

cosigning

cosmetics

cosmocrat

cosmorama

cosmotron

cosponsor

cossetted

costarred

costeaned

costotomy

costumers

costumery

costuming

See all 9-letter COS-words

10-Letter Words Starting With COS

Common 10-letter COS-words:

coscripted

coseismics

cosentient

cosinesses

cosmetical

cosmocrats

cosmodrome

cosmogonic

cosmolined

cosmolines

cosmoramas

cosmotrons

cosplayers

cosponsors

cossetting

costalgias

costarring

costeaning

costlessly

costumings

See all 10-letter COS-words

11-Letter Words Starting With COS

Common 11-letter COS-words:

coscripting

cosignatory

cosmetician

cosmeticise

cosmeticism

cosmeticize

cosmetology

cosmocratic

cosmodromes

cosmogenies

cosmogonies

cosmogonist

cosmography

cosmopolite

cosmosphere

cosmotheism

cosmothetic

costeanings

costiveness

costotomies

See all 11-letter COS-words

12-Letter Words Starting With COS

Common 12-letter COS-words:

coscinomancy

cosmetically

cosmeticians

cosmeticised

cosmeticises

cosmeticisms

cosmeticizes

cosmogonical

cosmogonists

cosmographic

cosmolatries

cosmological

cosmologists

cosmonautics

cosmopolises

cosmopolitan

cosmopolites

cosmopolitic

cosmospheres

cosurfactant

See all 12-letter COS-words

13-Letter Words Starting With COS

Common 13-letter COS-words:

cosignatories

cosmeceutical

cosmeticising

cosmeticizing

cosmeticology

cosmetologies

cosmetologist

cosmochemical

cosmochemists

cosmographers

cosmographies

cosmographist

cosmopolitans

cosmopolitics

cosmothetical

cosponsorship

costardmonger

costermongers

costivenesses

cosurfactants

See all 13-letter COS-words

14-Letter Words Starting With COS

Common 14-letter COS-words:

coscinomancies

cosmeceuticals

cosmetologists

cosmochemistry

cosmographical

cosmographists

cosmologically

cosmopolitical

cosmopolitisms

cosponsorships

costardmongers

See all 14-letter COS-words

15-Letter Words Starting With COS

Common 15-letter COS-words:

cosignificative

cosmeticologies

cosmopolitanism

See all 15-letter COS-words

265 Common Words Starting with COS

Most Common Length

Avg Scrabble Score

(out of 29)

Most Common Ending

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What is the highest scoring word in
Scrabble that starts with COS?

29 Points

The highest scoring word in Scrabble that starts with COS is cosmeticizing with a total of 29 points.

C 3

O 1

S 1

M 3

E 1

T 1

I 1

C 3

I 1

Z 10

I 1

N 1

G 2

Words that begin with COS are commonly used for word games like Scrabble and Words with Friends. This list will help you to find the top scoring words to beat the opponent. You can also find a list of all words that end in COS and words with COS. Try our five letter words starting with COS page if you’re playing Wordle-like games or use the New York Times Wordle Solver for finding the NYT Wordle daily answer.

FAQ Words That Start With COS

How many words starting with COS are in the English dictionary?

There are 265 words in the English dictionary that start with COS, and most of them are 9 letters long (34 words of that length).
What's the longest word starting with COS?

The longest word starting with COS is "cosmopolitanism" at 15 letters long. If you're looking for a more everyday word, "costumes" is the longest common word starting with COS.
Are there any rare words starting with COS worth more in Scrabble?

Yes. Uncommon words like "cosmeticize", "cosmeticizing", "cosmeticized", "cosmologically" start with COS and can score big thanks to their unusual letters. "cosmeticizing" is worth 29 points in Scrabble before any bonus tiles.
What are the most common words starting with COS?

Most words starting with COS are 9 letters long, including everyday words like "coscripts", "coseismal", "coseismic", "cosherers", "cosheries".