tire vs wear down

tire is a noun but wear down is not a noun.

Word	Noun	Adjective	Verb	Adverb
tire	Yes	No	Yes	No
wear down	No	No	Yes	No

As verbs, tire and wear down are synonyms defined as:

tire and wear down: exhaust or get tired through overuse or great strain or stress

Other synonyms of tire include fag, fag out, fatigue, jade, outwear, tire out, wear, wear out, wear upon, weary.

tire (noun)	wear down (noun)
hoop that covers a wheel

tire (verb)	wear down (verb)
lose interest or become bored with something or somebody	exhaust or get tired through overuse or great strain or stress
exhaust or get tired through overuse or great strain or stress	deteriorate through use or stress
cause to be bored
deplete