goosebump vs goose skin

goosebump and goose skin both are nouns.

Word	Noun	Adjective	Verb	Adverb
goosebump	Yes	No	No	No
goose skin	Yes	No	No	No

As nouns, goosebump and goose skin are synonyms defined as:

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

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

goosebump (noun)	goose skin (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