half-pint vs peewee

half-pint and peewee both are nouns.

Word	Noun	Adjective	Verb	Adverb
half-pint	Yes	No	No	No
peewee	Yes	No	No	No

As nouns, half-pint and peewee are synonyms defined as:

Other synonyms of half-pint include runt, shrimp.

half-pint (noun)	peewee (noun)
disparaging terms for small people	small olive-colored woodland flycatchers of eastern North America
	disparaging terms for small people