What is another word for bust-up?
Pronunciation: [bˈʌstˈʌp] (IPA) 
Bust-up is a slang term that refers to the ending of a relationship or a big argument between two people. There are many synonyms for the word "bust-up," including breakup, split-up, falling out, break off, sever, and parting ways. "Breakup" is perhaps the most commonly-used synonym, and often carries a more emotional weight than the others. "Split-up" is another popular synonym that suggests a mutual agreement to go separate ways. "Falling out" and "break off" are softer ways to describe a disagreement, while "sever" and "parting ways" can often imply a more permanent split. No matter which synonym is used, the idea of a separation or disagreement is always implied.
