burst into something phrasal verb (
see also burst)
1. to suddenly begin to make a sound, especially to start singing, crying, or laughing:
Claire looked as if she were about to burst into tears.
Suddenly, the group burst into laughter.
Lydia burst into song.2. burst into flames/flame to suddenly start to burn very strongly:
Their car crashed and burst into flames. [TahlilGaran] Dictionary of Contemporary English ▲