leader pipe

11 LETTERS · STARTS WITH L

leader pipe is a valid 11-letter word worth 15 points in Scrabble and 18 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

L1E1A1D2E1R1P3I1P3E1

1 + 1 + 1 + 2 + 1 + 1 + 0 + 3 + 1 + 3 + 1 =15 PTS

DOUBLE WORD → 30TRIPLE WORD → 45

MEANING

What does leader pipe mean?