cheval glass vs mirror

cheval glass and mirror both are nouns.

Word	Noun	Adjective	Verb	Adverb
cheval glass	Yes	No	No	No
mirror	Yes	No	Yes	No

As nouns, mirror is a hypernym of cheval glass; that is, mirror is a word with a broader meaning than cheval glass:

cheval glass: a full length mirror mounted in a frame in which it can be tilted
mirror: polished surface that forms images by reflecting light

cheval glass (noun)	mirror (noun)
a full length mirror mounted in a frame in which it can be tilted	polished surface that forms images by reflecting light
	a faithful depiction or reflection

cheval glass (verb)	mirror (verb)
	reflect or resemble
	reflect as if in a mirror