carbon knock

12 LETTERS · STARTS WITH C

carbon knock is a valid 12-letter word worth 25 points in Scrabble and 30 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3A1R1B3O1N1K5N1O1C3K5

3 + 1 + 1 + 3 + 1 + 1 + 0 + 5 + 1 + 1 + 3 + 5 =25 PTS

DOUBLE WORD → 50TRIPLE WORD → 75

MEANING

What does carbon knock mean?