positive column

15 LETTERS · STARTS WITH P

positive column is a valid 15-letter word worth 23 points in Scrabble and 30 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

P3O1S1I1T1I1V4E1C3O1L1U1M3N1

3 + 1 + 1 + 1 + 1 + 1 + 4 + 1 + 0 + 3 + 1 + 1 + 1 + 3 + 1 =23 PTS

DOUBLE WORD → 46TRIPLE WORD → 69

MEANING

What does positive column mean?