steganography

NOUN
13 LETTERS · STARTS WITH S

steganography is a valid 13-letter word worth 23 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
S1T1E1G2A1N1O1G2R1A1P3H4Y4
1 + 1 + 1 + 2 + 1 + 1 + 1 + 2 + 1 + 1 + 3 + 4 + 4 =23 PTS
DOUBLE WORD → 46TRIPLE WORD → 69
MEANING

What does steganography mean?