conclusive argument

19 LETTERS · STARTS WITH C

conclusive argument is a valid 19-letter word worth 28 points in Scrabble and 38 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3O1N1C3L1U1S1I1V4E1A1R1G2U1M3E1N1T1

3 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 4 + 1 + 0 + 1 + 1 + 2 + 1 + 3 + 1 + 1 + 1 =28 PTS

DOUBLE WORD → 56TRIPLE WORD → 84

MEANING

What does conclusive argument mean?