tyre vs automobile tire

tyre and automobile tire both are nouns.

Word	Noun	Adjective	Verb	Adverb
tyre	Yes	No	No	No
automobile tire	Yes	No	No	No

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

tyre: hoop that covers a wheel
automobile tire: a tire consisting of a rubber ring around the rim of an automobile wheel

Other hyponyms of tyre include auto tire, car tire, rubber tire, pneumatic tire, pneumatic tyre, wagon tire.

tyre (noun)	automobile tire (noun)
hoop that covers a wheel	a tire consisting of a rubber ring around the rim of an automobile wheel