shrimp vs half-pint

shrimp and half-pint both are nouns.

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

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

Other synonyms of shrimp include peewee, runt.

shrimp (noun)	half-pint (noun)
small slender-bodied chiefly marine decapod crustaceans with a long tail and single pair of pincers; many species are edible	disparaging terms for small people
any of various edible decapod crustaceans
disparaging terms for small people

shrimp (verb)	half-pint (verb)
fish for shrimp