peep vs twitter

peep and twitter both are nouns.

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

As verbs, twitter is a hyponym of peep; that is, twitter is a word with a more specific, narrower meaning than peep:

Other hyponyms of peep include chitter.

peep (noun)	twitter (noun)
a secret look	a series of chirps
the short weak cry of a young bird

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