chaperone vs den mother

chaperone and den mother both are nouns.

Word	Noun	Adjective	Verb	Adverb
chaperone	Yes	No	Yes	No
den mother	Yes	No	No	No

As nouns, den mother is a hyponym of chaperone; that is, den mother is a word with a more specific, narrower meaning than chaperone:

chaperone: one who accompanies and supervises a young woman or gatherings of young people
den mother: a woman who supervises a den of Cub Scouts

Other hyponyms of chaperone include duenna, housemother.

chaperone (noun)	den mother (noun)
one who accompanies and supervises a young woman or gatherings of young people	a woman who supervises a den of Cub Scouts
	someone who plays the role of a den mother

chaperone (verb)	den mother (verb)
accompany as a chaperone