cumulative system

17 LETTERS · STARTS WITH C

cumulative system is a valid 17-letter word worth 28 points in Scrabble and 34 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3U1M3U1L1A1T1I1V4E1S1Y4S1T1E1M3

3 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 4 + 1 + 0 + 1 + 4 + 1 + 1 + 1 + 3 =28 PTS

DOUBLE WORD → 56TRIPLE WORD → 84

MEANING

What does cumulative system mean?