Definition of "chirp" in Anglais

noun

1. A short, sharp or high note or noise, as of a bird or insect.

2. (radar, sonar, radio telescopy etc.) A pulse of signal whose frequency sweeps through a band of frequencies for the duration of the pulse; the quality of having a such a variation in frequency.

verb

1. (intransitive) To make a short, sharp, cheerful note, as of small birds or crickets; to chitter; to twitter.

2. (intransitive) To speak in a high-pitched staccato.

3. (transitive, radar, sonar, radio telescopy etc.) To modify (a pulse of signal) so that it sweeps through a band of frequencies throughout its duration.

4. (transitive, obsolete) To cheer up; to make (someone) happier.

5. (Canada) To speak rapid insulting comical banter back and forth; to bicker or argue.

6. (UK, slang, obsolete) To inform on someone; snitch.