pince-nez vs spectacles

pince-nez and spectacles both are nouns.

Word	Noun	Adjective	Verb	Adverb
pince-nez	Yes	No	No	No
spectacles	Yes	No	No	No

As nouns, spectacles is a hypernym of pince-nez; that is, spectacles is a word with a broader meaning than pince-nez:

pince-nez: spectacles clipped to the nose by a spring
spectacles: (plural) optical instrument consisting of a frame that holds a pair of lenses for correcting defective vision

Other hypernyms of pince-nez include eyeglasses, glasses, specs.

pince-nez (noun)	spectacles (noun)
spectacles clipped to the nose by a spring	(plural) optical instrument consisting of a frame that holds a pair of lenses for correcting defective vision