1. To notify (someone) of something; to call someone's attention to something.
  2. To give (especially public) notice of (something); to announce publicly.
  3. To provide information about a person or goods and services to influence others.
    It pays to advertise.
    For personal needs, advertise on the internet or in a local newspaper.
  4. To provide public information about (a product, service etc.) in order to attract public awareness and increase sales.
    Over the air, they advertise their product on drive-time radio talk shows and TV news shows.

The above text is a snippet from Wiktionary: advertise
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