1. to make a short, high-pitched sound like a small bird
2. to speak in a cheerful, lively way
Usage: informal

1. a short, high-pitched sound made by a small bird or insect

Examples

• The baby birds chirp loudly when they’re hungry.
• Crickets chirp throughout the summer night.
• She chirped happily about her vacation plans.
• I heard the chirp of a robin outside my window.
• The smoke detector gave a warning chirp when the battery was low.
• The sparrows chirp at dawn every morning.