Yes, SOUARI is a Scrabble word!

Letter values in Scrabble US: S 1, O 1, U 1, A 1, R 1, I 1.

Is it a valid word?

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

large South American evergreen tree trifoliate leaves and drupes with nutlike seeds used as food and a source of cooking oil

Also: souari nut, souari tree, caryocar nuciferum.