not following

13 LETTERS · STARTS WITH N

not following is a valid 13-letter word worth 19 points in Scrabble and 24 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

N1O1T1F4O1L1L1O1W4I1N1G2

1 + 1 + 1 + 0 + 4 + 1 + 1 + 1 + 1 + 4 + 1 + 1 + 2 =19 PTS

DOUBLE WORD → 38TRIPLE WORD → 57

MEANING

What does not following mean?