Irish vs Ireland

Irish and Ireland both are nouns.

Word	Noun	Adjective	Verb	Adverb
Irish	Yes	Yes	No	No
Ireland	Yes	No	No	No

Irish (noun)	Ireland (noun)
the Celtic language of Ireland	an island comprising the republic of Ireland and Northern Ireland
whiskey made in Ireland chiefly from barley	a republic consisting of 26 of 32 counties comprising the island of Ireland; achieved independence from the United Kingdom in 1921
people of Ireland or of Irish extraction

Irish (adjective)	Ireland (adjective)
of or relating to or characteristic of Ireland or its people