retread vs rubber tire

retread and rubber tire both are nouns.

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

As nouns, rubber tire is a hypernym of retread; that is, rubber tire is a word with a broader meaning than retread:

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

Other hypernyms of retread include auto tire, automobile tire, car tire.

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

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