this size

9 LETTERS · STARTS WITH T

this size is a valid 9-letter word worth 20 points in Scrabble and 19 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

T1H4I1S1S1I1Z10E1

1 + 4 + 1 + 1 + 0 + 1 + 1 + 10 + 1 =20 PTS

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does this size mean?