preaddition

11 LETTERS · 4 SYLLABLES · STARTS WITH P

preaddition is a valid 11-letter word worth 15 points in Scrabble and 17 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

P3R1E1A1D2D2I1T1I1O1N1

3 + 1 + 1 + 1 + 2 + 2 + 1 + 1 + 1 + 1 + 1 =15 PTS

DOUBLE WORD → 30TRIPLE WORD → 45

MEANING

What does preaddition mean?