leading strings

15 LETTERS · STARTS WITH L

leading strings is a valid 15-letter word worth 17 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

L1E1A1D2I1N1G2S1T1R1I1N1G2S1

1 + 1 + 1 + 2 + 1 + 1 + 2 + 0 + 1 + 1 + 1 + 1 + 1 + 2 + 1 =17 PTS

DOUBLE WORD → 34TRIPLE WORD → 51

MEANING

What does leading strings mean?