To give (especially public) notice of (something); to announce publicly.
To provide information about a person or goods and services to influence others.
To provide public information about (a product, service etc.) in order to attract public awareness and increase sales.
To notify (someone) of something; to call someone's attention to something.
In gin rummy, to discard a card of one's preferred suit so as to mislead the opponent into thinking you do not want it.