goose bump vs goose pimple

goose bump and goose pimple both are nouns.

Word	Noun	Adjective	Verb	Adverb
goose bump	Yes	No	No	No
goose pimple	Yes	No	No	No

As nouns, goose bump and goose pimple are synonyms defined as:

goose bump and goose pimple: reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation

Other synonyms of goose bump include goose skin, goosebump, gooseflesh, horripilation, pilomotor reflex.

goose bump (noun)	goose pimple (noun)
reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation	reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation