Is BOO a valid Scrabble word?

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

What BOO means

• interjection - A loud exclamation intended to scare someone. Usually used when one has been hidden from the target, and then appears unexpectedly.
• noun - A derisive shout of the word 'boo' made to indicate disapproval.
• verb - To shout extended boos derisively.

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

Anagrams of BOO

• OBO

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