/ad"veuhr tuy'zing/ , n.
1. the act or practice of calling public attention to one's product, service, need, etc., esp. by paid announcements in newspapers and magazines, over radio or television, on billboards, etc.: to get more customers by advertising.
2. paid announcements; advertisements.
3. the profession of planning, designing, and writing advertisements.
Also, advertizing .
[ 1520-30; ADVERTISE + -ING 1 ]