What is another word for burst into?
Pronunciation: [bˈɜːst ˌɪntʊ] (IPA) 
Burst into is a phrase that denotes a sudden and vigorous explosion of an emotion or an action. Similarly, there are various synonyms that can be used in place of burst into to denote such a sudden happening. Some of the synonyms are explode, erupt, ignite, start, break out, flare up, commence, spring up, etc. These synonyms can be used interchangeably with burst into depending on the context of the sentence. For example, instead of saying "He burst into tears," one can say "He erupted in tears" or "He suddenly started crying." Therefore, using synonyms for burst into can make the language more diverse and interesting while conveying the same meaning.
