two-sidedness

13 LETTERS · 3 SYLLABLES · STARTS WITH T

two-sidedness is a valid 13-letter word worth 17 points in Scrabble and 18 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

T1W4O1-0S1I1D2E1D2N1E1S1S1

1 + 4 + 1 + 0 + 1 + 1 + 2 + 1 + 2 + 1 + 1 + 1 + 1 =17 PTS

DOUBLE WORD → 34TRIPLE WORD → 51

MEANING

What does two-sidedness mean?