not suffice

11 LETTERS · STARTS WITH N

not suffice is a valid 11-letter word worth 18 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

N1O1T1S1U1F4F4I1C3E1

1 + 1 + 1 + 0 + 1 + 1 + 4 + 4 + 1 + 3 + 1 =18 PTS

DOUBLE WORD → 36TRIPLE WORD → 54

MEANING

What does not suffice mean?