Definition of: chirp

(chûrp) v.i.
1. To give a short, acute cry, as a sparrow, locust, or cricket; to cheep, as a young bird.
2. To make a similar sound, as in urging a horse.
3. To talk in a quick and cheerful manner.
—v.t.
4. To utter with a quick, sharp sound.
—noun A short, sharp sound, as made by some birds and insects. [ME chirpen, var. of chirken CHIRK]
—chirp′er, noun
—chirp′ing·ly adverb