jacket vs Irish potato

jacket and Irish potato both are nouns.

Word	Noun	Adjective	Verb	Adverb
jacket	Yes	No	Yes	No
Irish potato	Yes	No	No	No

jacket (noun)	Irish potato (noun)
a short coat	an edible tuber native to South America; a staple food of Ireland
an outer wrapping or casing
(dentistry) dental appliance consisting of an artificial crown for a broken or decayed tooth
the tough metal shell casing for certain kinds of ammunition
the outer skin of a potato

jacket (verb)	Irish potato (verb)
put a jacket on
provide with a thermally non-conducting cover