common case

11 LETTERS · STARTS WITH C

common case is a valid 11-letter word worth 18 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3O1M3M3O1N1C3A1S1E1

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

DOUBLE WORD → 36TRIPLE WORD → 54

MEANING

What does common case mean?