A short, sharp or high note or noise, as of a bird or insect.
2
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.
The long fiber lengths required to linearize the chirp can then be used […]
verb
1
To make a short, sharp, cheerful note, as of small birds or crickets; to chitter; to twitter.
"Well, I suppose you didn't come out of the egg either before you could chirp," said the woman who was on the egg.
2
To speak in a high-pitched staccato.
3
To modify (a pulse of signal) so that it sweeps through a band of frequencies throughout its duration.
4
To cheer up; to make (someone) happier.
5
To speak rapid insulting comical banter back and forth; to bicker or argue.