set function

12 LETTERS · STARTS WITH S

set function is a valid 12-letter word worth 16 points in Scrabble and 20 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1E1T1F4U1N1C3T1I1O1N1

1 + 1 + 1 + 0 + 4 + 1 + 1 + 3 + 1 + 1 + 1 + 1 =16 PTS

DOUBLE WORD → 32TRIPLE WORD → 48

MEANING

What does set function mean?