cumulonimbus cloud

NOUN
18 LETTERS · STARTS WITH C

cumulonimbus cloud is a valid 18-letter word worth 28 points in Scrabble and 40 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
C3U1M3U1L1O1N1I1M3B3U1S1C3L1O1U1D2
3 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 3 + 3 + 1 + 1 + 0 + 3 + 1 + 1 + 1 + 2 =28 PTS
DOUBLE WORD → 56TRIPLE WORD → 84
MEANING

What does cumulonimbus cloud mean?

NOUN · 1 SENSE
1

A dark cloud of great vertical extent charged with electricity; associated with thunderstorms.

BROADER