composite arch

14 LETTERS · STARTS WITH C

composite arch is a valid 14-letter word worth 24 points in Scrabble and 27 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3O1M3P3O1S1I1T1E1A1R1C3H4

3 + 1 + 3 + 3 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 3 + 4 =24 PTS

DOUBLE WORD → 48TRIPLE WORD → 72

MEANING

What does composite arch mean?