mass observer

13 LETTERS · STARTS WITH M

mass observer is a valid 13-letter word worth 19 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
M3A1S1S1O1B3S1E1R1V4E1R1
3 + 1 + 1 + 1 + 0 + 1 + 3 + 1 + 1 + 1 + 4 + 1 + 1 =19 PTS
DOUBLE WORD → 38TRIPLE WORD → 57
MEANING

What does mass observer mean?

1