main interest

13 LETTERS · STARTS WITH M

main interest is a valid 13-letter word worth 14 points in Scrabble and 17 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
M3A1I1N1I1N1T1E1R1E1S1T1
3 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =14 PTS
DOUBLE WORD → 28TRIPLE WORD → 42
MEANING

What does main interest mean?

1