compass error

13 LETTERS · STARTS WITH C

compass error is a valid 13-letter word worth 18 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3O1M3P3A1S1S1E1R1R1O1R1

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

DOUBLE WORD → 36TRIPLE WORD → 54

MEANING

What does compass error mean?