flank file

10 LETTERS · STARTS WITH F

flank file is a valid 10-letter word worth 19 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

F4L1A1N1K5F4I1L1E1

4 + 1 + 1 + 1 + 5 + 0 + 4 + 1 + 1 + 1 =19 PTS

DOUBLE WORD → 38TRIPLE WORD → 57

MEANING

What does flank file mean?