function shift

14 LETTERS · STARTS WITH F

function shift is a valid 14-letter word worth 24 points in Scrabble and 27 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

F4U1N1C3T1I1O1N1S1H4I1F4T1

4 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 0 + 1 + 4 + 1 + 4 + 1 =24 PTS

DOUBLE WORD → 48TRIPLE WORD → 72

MEANING

What does function shift mean?