Is THY a valid Scrabble word?

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

What THY means

• determiner - Possessive form of thou: that which belongs to thee; which belongs to you (singular).
• conjunction - Only used in for thy, for-thy, which is an alternative form of forthy (“because, therefore”).

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.