starting grid

13 LETTERS · STARTS WITH S

starting grid is a valid 13-letter word worth 15 points in Scrabble and 18 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1T1A1R1T1I1N1G2G2R1I1D2

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

DOUBLE WORD → 30TRIPLE WORD → 45

MEANING

What does starting grid mean?