chaperone vs guardian

chaperone and guardian both are nouns.

Word	Noun	Adjective	Verb	Adverb
chaperone	Yes	No	Yes	No
guardian	Yes	No	No	No

As nouns, guardian is a hypernym of chaperone; that is, guardian is a word with a broader meaning than chaperone:

chaperone: one who accompanies and supervises a young woman or gatherings of young people
guardian: a person who cares for persons or property

Other hypernyms of chaperone include defender, protector, shielder.

chaperone (noun)	guardian (noun)
one who accompanies and supervises a young woman or gatherings of young people	a person who cares for persons or property

chaperone (verb)	guardian (verb)
accompany as a chaperone