barometer

NOUN /bə'rɑmɪtər/
9 LETTERS · 4 SYLLABLES · STARTS WITH B

barometer is a valid 9-letter word worth 13 points in Scrabble and 15 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
B3A1R1O1M3E1T1E1R1
3 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 =13 PTS
DOUBLE WORD → 26TRIPLE WORD → 39
MEANING

What does barometer mean?