not guesswork

13 LETTERS · STARTS WITH N

not guesswork is a valid 13-letter word worth 20 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

N1O1T1G2U1E1S1S1W4O1R1K5

1 + 1 + 1 + 0 + 2 + 1 + 1 + 1 + 1 + 4 + 1 + 1 + 5 =20 PTS

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does not guesswork mean?