cuke vs gherkin

cuke and gherkin both are nouns.

Word	Noun	Adjective	Verb	Adverb
cuke	Yes	No	No	No
gherkin	Yes	No	No	No

As nouns, gherkin is a hyponym of cuke; that is, gherkin is a word with a more specific, narrower meaning than cuke:

cuke: cylindrical green fruit with thin green rind and white flesh eaten as a vegetable; related to melons
gherkin: small prickly cucumber

cuke (noun)	gherkin (noun)
cylindrical green fruit with thin green rind and white flesh eaten as a vegetable; related to melons	small prickly cucumber
	any of various small cucumbers pickled whole