simple variable

15 LETTERS · STARTS WITH S

simple variable is a valid 15-letter word worth 23 points in Scrabble and 29 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1I1M3P3L1E1V4A1R1I1A1B3L1E1

1 + 1 + 3 + 3 + 1 + 1 + 0 + 4 + 1 + 1 + 1 + 1 + 3 + 1 + 1 =23 PTS

DOUBLE WORD → 46TRIPLE WORD → 69

MEANING

What does simple variable mean?