wave guide vs conductor

wave guide and conductor both are nouns.

Word	Noun	Adjective	Verb	Adverb
wave guide	Yes	No	No	No
conductor	Yes	No	No	No

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

wave guide: a hollow metal conductor that provides a path to guide microwaves; used in radar
conductor: a device designed to transmit electricity, heat, etc.

wave guide (noun)	conductor (noun)
a hollow metal conductor that provides a path to guide microwaves; used in radar	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