not singular

12 LETTERS · STARTS WITH N

not singular is a valid 12-letter word worth 12 points in Scrabble and 17 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

N1O1T1S1I1N1G2U1L1A1R1

1 + 1 + 1 + 0 + 1 + 1 + 1 + 2 + 1 + 1 + 1 + 1 =12 PTS

DOUBLE WORD → 24TRIPLE WORD → 36

MEANING

What does not singular mean?