Is HORN a valid Scrabble word?

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

What HORN means

• noun - A hard growth of keratin that protrudes from the top of the head of certain animals, usually paired.
• verb - Of an animal, to assault with the horns.

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

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