1. a person who introduces programs or reads news on radio or television
2. a person who makes public announcements, especially at events or over a loudspeaker system

Examples

• The radio announcer read the morning news.
• A television announcer introduced the evening program.
• The stadium announcer called out the players’ names.
• She worked as an announcer for the local news station.
• The announcer’s voice echoed through the airport terminal.
• He became a sports announcer after retiring from baseball.
• The announcer reminded passengers to keep their tickets ready.