first off

ADVERB /fɜrst_ɔf/
9 LETTERS · STARTS WITH F

first off is a valid 9-letter word worth 17 points in Scrabble and 17 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
F4I1R1S1T1O1F4F4
4 + 1 + 1 + 1 + 1 + 0 + 1 + 4 + 4 =17 PTS
DOUBLE WORD → 34TRIPLE WORD → 51
MEANING

What does first off mean?

ADVERB · 1 SENSE
1

Before anything else.