observation balloon

19 LETTERS · STARTS WITH O

observation balloon is a valid 19-letter word worth 25 points in Scrabble and 32 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

O1B3S1E1R1V4A1T1I1O1N1B3A1L1L1O1O1N1

1 + 3 + 1 + 1 + 1 + 4 + 1 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 1 + 1 + 1 + 1 =25 PTS

DOUBLE WORD → 50TRIPLE WORD → 75

MEANING

What does observation balloon mean?