main strength

13 LETTERS · STARTS WITH M

main strength is a valid 13-letter word worth 18 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

M3A1I1N1S1T1R1E1N1G2T1H4

3 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 1 + 2 + 1 + 4 =18 PTS

DOUBLE WORD → 36TRIPLE WORD → 54

MEANING

What does main strength mean?