Daily word games to challenge your mind
Looking for 9-letter words starting with COS? You've found the right place. Popular examples include COSCRIPTS, COSECANTS, COSHERING, plus COSIGNERS, COSIGNING, COSMETICS and many more. Explore different vowel patterns after COS to find your word quickly.
| Word | Definition | Length | Syllables |
|---|---|---|---|
| coscripts | 9 | 2 | |
| cosecants | 9 | 3 | |
| coshering | 9 | 3 | |
| cosigners | 9 | 3 | |
| cosigning | 9 | 3 | |
| cosmetics | 9 | 3 | |
| cosmogony | 9 | 4 | |
| cosmology | 9 | 4 | |
| cosmonaut | 9 | 3 | |
| cosponsor | 9 | 3 | |
| cosseting | 9 | 3 | |
| costarred | 9 | 3 | |
| costively | 9 | 4 | |
| costliest | 9 | 2 | |
| costumers | 9 | 3 | |
| costumery | 9 | 4 | |
| costumier | 9 | 3 | |
| costuming | 9 | 3 |
Are COS-starting words common?
COS is a frequent start; probing vowel swaps after COS quickly narrows options.
Is this list good for crosswords?
Yes—filter by length mentally and scan definitions when available.