chain mark

10 LETTERS · STARTS WITH C

chain mark is a valid 10-letter word worth 20 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3H4A1I1N1M3A1R1K5

3 + 4 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 5 =20 PTS

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does chain mark mean?