Is LIGHTNING a valid Scrabble word?

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

What LIGHTNING means

• noun - A flash of light produced by short-duration, high-voltage discharge of electricity within a cloud, between clouds, or between a cloud and the earth.
• adjective - Extremely fast or sudden; moving (as if) at the speed of lightning.
• verb - To produce lightning.

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

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