gringo vs noncitizen

gringo and noncitizen both are nouns.

Word	Noun	Adjective	Verb	Adverb
gringo	Yes	No	No	No
noncitizen	Yes	No	No	No

As nouns, noncitizen is a hypernym of gringo; that is, noncitizen is a word with a broader meaning than gringo:

gringo: a Latin American (disparaging) term for foreigners (especially Americans and Englishmen)
noncitizen: a person who comes from a foreign country; someone who does not owe allegiance to your country

Other hypernyms of gringo include alien, foreigner, outlander.

gringo (noun)	noncitizen (noun)
a Latin American (disparaging) term for foreigners (especially Americans and Englishmen)	a person who comes from a foreign country; someone who does not owe allegiance to your country