heat sink vs conductor

heat sink and conductor both are nouns.

Word	Noun	Adjective	Verb	Adverb
heat sink	Yes	No	No	No
conductor	Yes	No	No	No

As nouns, conductor is a hypernym of heat sink; that is, conductor is a word with a broader meaning than heat sink:

heat sink: a metal conductor specially designed to conduct (and radiate) heat
conductor: a device designed to transmit electricity, heat, etc.

Other hypernyms of heat sink include sink.

heat sink (noun)	conductor (noun)
a metal conductor specially designed to conduct (and radiate) heat	a device designed to transmit electricity, heat, etc.
	the person who leads a musical group
	the person who collects fares on a public conveyance
	a substance that readily conducts e.g. electricity and heat