rubber tire vs retread

rubber tire and retread both are nouns.

Word	Noun	Adjective	Verb	Adverb
rubber tire	Yes	No	No	No
retread	Yes	No	Yes	No

As nouns, retread is a hyponym of rubber tire; that is, retread is a word with a more specific, narrower meaning than rubber tire:

rubber tire: a tire consisting of a rubber ring around the rim of an automobile wheel
retread: a used automobile tire that has been remolded to give it new treads

Other hyponyms of rubber tire include recap.

rubber tire (noun)	retread (noun)
a tire consisting of a rubber ring around the rim of an automobile wheel	a used automobile tire that has been remolded to give it new treads

rubber tire (verb)	retread (verb)
	give new treads to (a tire)
	use again in altered form