mason's level

NOUN
13 LETTERS · STARTS WITH M

mason's level is a valid 13-letter word worth 16 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
M3A1S1O1N1'0S1L1E1V4E1L1
3 + 1 + 1 + 1 + 1 + 0 + 1 + 0 + 1 + 1 + 4 + 1 + 1 =16 PTS
DOUBLE WORD → 32TRIPLE WORD → 48
MEANING

What does mason's level mean?

NOUN · 1 SENSE
1

A level longer than a carpenter's level.