winder vs mechanical device

winder and mechanical device both are nouns.

Word	Noun	Adjective	Verb	Adverb
winder	Yes	No	No	No
mechanical device	Yes	No	No	No

As nouns, mechanical device is a hypernym of winder; that is, mechanical device is a word with a broader meaning than winder:

winder: mechanical device around which something can be wound
mechanical device: mechanism consisting of a device that works on mechanical principles

As nouns, mechanical device is a hypernym of winder; that is, mechanical device is a word with a broader meaning than winder:

winder: mechanical device used to wind another device that is driven by a spring (as a clock)
mechanical device: mechanism consisting of a device that works on mechanical principles

winder (noun)	mechanical device (noun)
mechanical device around which something can be wound	mechanism consisting of a device that works on mechanical principles
mechanical device used to wind another device that is driven by a spring (as a clock)
a worker who winds (e.g., a winch or clock or other mechanism)