hand glass vs mirror

hand glass and mirror both are nouns.

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

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

hand glass (noun)	mirror (noun)
light microscope consisting of a single convex lens that is used to produce an enlarged image	polished surface that forms images by reflecting light
a mirror intended to be held in the hand	a faithful depiction or reflection

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