listing machine

15 LETTERS · STARTS WITH L

listing machine is a valid 15-letter word worth 22 points in Scrabble and 27 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

L1I1S1T1I1N1G2M3A1C3H4I1N1E1

1 + 1 + 1 + 1 + 1 + 1 + 2 + 0 + 3 + 1 + 3 + 4 + 1 + 1 + 1 =22 PTS

DOUBLE WORD → 44TRIPLE WORD → 66

MEANING

What does listing machine mean?