Is REX a valid Scrabble word?

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

What REX means

• noun - A king, particularly in ancient Rome.
• verb - To breed (an animal) to have this kind of hair.

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

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