Advertisement

n. act of advertising, promotion, drawing attention to, act of promoting (generally in order to sell goods or services); public announcement or printed notice designed to attract attention; ad; advert; public announcement (also advertizement)

Advertising is paid, one-way communication through a medium in which the sponsor is identified and the message is controlled by the sponsor. Variations include publicity, public relations, etc.. Every major medium is used to deliver these messages, including: television, radio, movies, magazines, newspapers, video games, the Internet (see Internet advertising), and billboards.
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Noun
1. a public promotion of some product or service
(synonym) ad, advertizement, advertising, advertizing, advert
(hypernym) promotion, publicity, promotional material, packaging
(hyponym) direct mail
(derivation) advertise, advertize, promote, push

(n.)
The act of informing or notifying; notification.
  

(n.)
Admonition; advice; warning.
  

(n.)
A public notice, especially a paid notice in some public print; anything that advertises; as, a newspaper containing many advertisements.
  

a specific message from an organisation to potential customers containing a message and in paid for media space. Commonly shortened to 'ad' or 'advert'.