sound perimeter

15 LETTERS · STARTS WITH S

sound perimeter is a valid 15-letter word worth 19 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1O1U1N1D2P3E1R1I1M3E1T1E1R1

1 + 1 + 1 + 1 + 2 + 0 + 3 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 =19 PTS

DOUBLE WORD → 38TRIPLE WORD → 57

MEANING

What does sound perimeter mean?