unity of interest

17 LETTERS · STARTS WITH U

unity of interest is a valid 17-letter word worth 21 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
U1N1I1T1Y4O1F4I1N1T1E1R1E1S1T1
1 + 1 + 1 + 1 + 4 + 0 + 1 + 4 + 0 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =21 PTS
DOUBLE WORD → 42TRIPLE WORD → 63
MEANING

What does unity of interest mean?

1