Is OS a valid Scrabble word?

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

What OS means

• noun - Alternative form of o's.
• adjective - Initialism of outsize, clothes for large people.
• adverb - Initialism of overseas.

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

Anagrams of OS

• SO

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