Is THUNDER a valid Scrabble word?

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

What THUNDER means

• noun - The loud rumbling, cracking, or crashing sound caused by expansion of rapidly heated air around a lightning bolt.
• verb - To produce thunder; to sound, rattle, or roar, as a discharge of atmospheric electricity.

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

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