peewee vs tyrant bird

peewee and tyrant bird both are nouns.

Word	Noun	Adjective	Verb	Adverb
peewee	Yes	No	No	No
tyrant bird	Yes	No	No	No

As nouns, tyrant bird is a hypernym of peewee; that is, tyrant bird is a word with a broader meaning than peewee:

peewee: small olive-colored woodland flycatchers of eastern North America
tyrant bird: large American birds that characteristically catch insects on the wing

Other hypernyms of peewee include flycatcher, New World flycatcher, tyrant flycatcher.

peewee (noun)	tyrant bird (noun)
small olive-colored woodland flycatchers of eastern North America	large American birds that characteristically catch insects on the wing
disparaging terms for small people