loupe vs magnifying glass

loupe and magnifying glass both are nouns.

Word	Noun	Adjective	Verb	Adverb
loupe	Yes	No	No	No
magnifying glass	Yes	No	No	No

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

loupe: small magnifying glass (usually set in an eyepiece) used by jewelers and horologists
magnifying glass: light microscope consisting of a single convex lens that is used to produce an enlarged image

Other hypernyms of loupe include hand glass, simple microscope.

loupe (noun)	magnifying glass (noun)
small magnifying glass (usually set in an eyepiece) used by jewelers and horologists	light microscope consisting of a single convex lens that is used to produce an enlarged image