sound reasoning

15 LETTERS · STARTS WITH S

sound reasoning is a valid 15-letter word worth 16 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1O1U1N1D2R1E1A1S1O1N1I1N1G2

1 + 1 + 1 + 1 + 2 + 0 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 2 =16 PTS

DOUBLE WORD → 32TRIPLE WORD → 48

MEANING

What does sound reasoning mean?