advertizing

NOUN
11 LETTERS · 4 SYLLABLES · STARTS WITH A

advertizing is a valid 11-letter word worth 25 points in Scrabble and 28 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
A1D2V4E1R1T1I1Z10I1N1G2
1 + 2 + 4 + 1 + 1 + 1 + 1 + 10 + 1 + 1 + 2 =25 PTS
DOUBLE WORD → 50TRIPLE WORD → 75
MEANING

What does advertizing mean?