bust vs wear out

bust is a noun but wear out is not a noun.

Word	Noun	Adjective	Verb	Adverb
bust	Yes	Yes	Yes	No
wear out	No	No	Yes	No

As verbs, bust and wear out are synonyms defined as:

Other synonyms of bust include break, fall apart, wear.

bust (noun)	wear out (noun)
an occasion for excessive eating or drinking
a sculpture of the head and shoulders of a person
the chest of a woman
a complete failure

bust (adjective)	wear out (adjective)
lacking funds

bust (verb)	wear out (verb)
break open or apart suddenly and forcefully	exhaust or get tired through overuse or great strain or stress
go to pieces	deteriorate through use or stress
ruin completely	go to pieces
separate or cause to separate abruptly
search without warning, make a sudden surprise attack on