wreck vs bust up

wreck is a noun but bust up is not a noun.

Word	Noun	Adjective	Verb	Adverb
wreck	Yes	No	Yes	No
bust up	No	No	Yes	No

As verbs, wreck and bust up are synonyms defined as:

Other synonyms of wreck include wrack.

wreck (noun)	bust up (noun)
a ship that has been destroyed at sea
a serious accident (usually involving one or more vehicles)
an accident that destroys a ship at sea
something or someone that has suffered ruin or dilapidation

wreck (verb)	bust up (verb)
smash or break forcefully	smash or break forcefully