(esp of some birds and insects) to make a short high-pitched sound
2.
to speak in a lively fashion
—n
3.
a chirping sound, esp that made by a bird
[C15 (as chirpinge, gerund): of imitative origin]
'chirper
—n
CHIRP (tʃɜːp)
—n acronym for
Confidential Human Incidents Reporting Programme: a system, run by the RAF Institute of Medicine, by which commercial pilots can comment on safety trends without the knowledge of their employers