burst

/ˈbərst/

Middle English bersten, from Old English berstan; akin to Old High German brestan to burst

verb

  1. to break open, apart, or into pieces usually from impact or from pressure from within

  2. to give way from an excess of emotion

  3. to give vent suddenly to a repressed emotion

the balloon burst

noun

  1. a sudden outbreak; especially : a vehement outburst (as of emotion)

  2. explosion, eruption

  3. a sudden intense effort

a burst of flames

a burst of violence

idiom

  1. to suddenly enter a room and interrupt (someone or something)

They just burst in on us without even knocking on the door.