third reading

13 LETTERS · STARTS WITH T

third reading is a valid 13-letter word worth 18 points in Scrabble and 19 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
T1H4I1R1D2R1E1A1D2I1N1G2
1 + 4 + 1 + 1 + 2 + 0 + 1 + 1 + 1 + 2 + 1 + 1 + 2 =18 PTS
DOUBLE WORD → 36TRIPLE WORD → 54
MEANING

What does third reading mean?

1