Daily word games to challenge your mind
A curated list of 9-letter words tailored to this exact pattern. When a clue points to COS starts, alternate vowel patterns and common blends after the prefix. For example: coscripts, cosecants, coshering.
| 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.