string figure

13 LETTERS · STARTS WITH S

string figure is a valid 13-letter word worth 17 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1T1R1I1N1G2F4I1G2U1R1E1

1 + 1 + 1 + 1 + 1 + 2 + 0 + 4 + 1 + 2 + 1 + 1 + 1 =17 PTS

DOUBLE WORD → 34TRIPLE WORD → 51

MEANING

What does string figure mean?