determining factor

NOUN
18 LETTERS · STARTS WITH D

determining factor is a valid 18-letter word worth 26 points in Scrabble and 31 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
D2E1T1E1R1M3I1N1I1N1G2F4A1C3T1O1R1
2 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 2 + 0 + 4 + 1 + 3 + 1 + 1 + 1 =26 PTS
DOUBLE WORD → 52TRIPLE WORD → 78
MEANING

What does determining factor mean?

NOUN · 1 SENSE
1

An argument that is conclusive.