chirp vs peep

chirp and peep both are nouns.

Word	Noun	Adjective	Verb	Adverb
chirp	Yes	No	Yes	No
peep	Yes	No	Yes	No

As verbs, chirp and peep are synonyms defined as:

Other synonyms of chirp include cheep, chirrup.

chirp (noun)	peep (noun)
a sharp sound made by small birds or insects	a secret look
	the short weak cry of a young bird

chirp (verb)	peep (verb)
make high-pitched sounds	appear as though from hiding
sing in modulation	make high-pitched sounds
	speak in a hesitant and high-pitched tone of voice
	look furtively
	cause to come into view