liquid measure

NOUN /lɪkwɪd_'mɛʒər/
14 LETTERS · 3 SYLLABLES · STARTS WITH L

liquid measure is a valid 14-letter word worth 25 points in Scrabble and 29 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
L1I1Q10U1I1D2M3E1A1S1U1R1E1
1 + 1 + 10 + 1 + 1 + 2 + 0 + 3 + 1 + 1 + 1 + 1 + 1 + 1 =25 PTS
DOUBLE WORD → 50TRIPLE WORD → 75
MEANING

What does liquid measure mean?