compass deviation

17 LETTERS · STARTS WITH C

compass deviation is a valid 17-letter word worth 26 points in Scrabble and 31 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3O1M3P3A1S1S1D2E1V4I1A1T1I1O1N1

3 + 1 + 3 + 3 + 1 + 1 + 1 + 0 + 2 + 1 + 4 + 1 + 1 + 1 + 1 + 1 + 1 =26 PTS

DOUBLE WORD → 52TRIPLE WORD → 78

MEANING

What does compass deviation mean?