Yes, MEZUZAH is a Scrabble word!

Letter values in Scrabble US: M 3, E 1, Z 10, U 1, Z 10, A 1, H 4.

Is it a valid word?

MEZUZAH is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

religious texts from Deuteronomy inscribed on parchment and rolled up in a case that is attached to the doorframe of many Jewish households in accordance with Jewish law