known quantity

14 LETTERS · STARTS WITH K

known quantity is a valid 14-letter word worth 32 points in Scrabble and 35 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

K5N1O1W4N1Q10U1A1N1T1I1T1Y4

5 + 1 + 1 + 4 + 1 + 0 + 10 + 1 + 1 + 1 + 1 + 1 + 1 + 4 =32 PTS

DOUBLE WORD → 64TRIPLE WORD → 96

MEANING

What does known quantity mean?