correspondence column

21 LETTERS · STARTS WITH C

correspondence column is a valid 21-letter word worth 31 points in Scrabble and 41 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
C3O1R1R1E1S1P3O1N1D2E1N1C3E1C3O1L1U1M3N1
3 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 2 + 1 + 1 + 3 + 1 + 0 + 3 + 1 + 1 + 1 + 3 + 1 =31 PTS
DOUBLE WORD → 62TRIPLE WORD → 93
MEANING

What does correspondence column mean?

1