1. a public or formal statement giving information about something
2. the act of announcing something

Examples

• The principal made an announcement over the intercom.
• We’re waiting for the official announcement of the election results.
• The company’s announcement of layoffs shocked employees.
• She made the announcement of her engagement at dinner.
• The flight announcement said our gate had changed.
• His announcement that he was retiring surprised everyone.
• The wedding announcement appeared in the local newspaper.