Is PRIOR a valid Scrabble word?

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

What PRIOR means

• adjective - Coming before in order or time; earlier, former, previous.
• adverb - Chiefly followed by to: in advance, before, previously.
• noun - A prior probability distribution, that is, one determined without knowledge of the occurrence of other events that bear on it, before additional...

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

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