Is COS a valid Scrabble word?

Yes. COS is valid in Collins Scrabble Words 2024, the word list used for Scrabble in the UK.

What COS means

• noun - plural of co
• conjunction - Informal spelling of 'cause (“because”).
• determiner - Belonging to co. Gender-neutral possessive determiner, grammatically equivalent to the gendered his and her and the singular their.

Definitions come from Wiktionary via kaikki.org, shortened to fit, and are used under CC BY-SA 4.0.

Anagrams of COS

• SOC

Gramlet is a daily word game played with the same Collins list. Play today's board.