Skip to main content
to burst in on

to burst in on

3 5.2
Go into a room or conversation suddenly and interrupt people
  • phrasal verb
  • /bɜrst ɪn ɑn/
translation icon : irrumplir en
  • I'm sorry I burst in on you like this.
  • sorry for bursting in on
  • police burst in on

Examples

  • His parents were in the kitchen when we burst in on them.

    Fiction book (1997)
  • She made for the door, but Henry was there first, bursting in on them, red-cheeked with excitement and the effort of running up the hill.

    Fiction book (1990)
  • I think I may be forced to burst in on you.

  • I'm sorry to burst in on you.

  • The Secret Service is about to burst in on Phreak.

    Fiction book (1995)
  • I'm sorry to burst in on you like this... but Mel said he didn't want to waste any time.

  • She cleaned the apartment every day, from time to time bursting in on Grace with a handful of corner dust for her inspection.

    Fiction book (1991)
  • Vic Junior cried, bursting in on his hardworking parent, waving the tattered magazine.

    Fiction book (1994)
  • We also need to make sure that the real Crabbe and Goyle can't burst in on us while we're interrogating Malfoy.

  • I didn't mean to burst in on the meeting without an invitation.

Synonyms

to intrude
vsto burst in on
105 4.4

To go into a place or conversation where you are not welcome

is sudden unexpected entry often interrupting others rather than only unwelcome presence
to barge in
vsto burst in on
  • Informal
59 5.5

Enter a room or conversation suddenly and rudely without being invited

is sudden interruption without the rude or harsh tone
to walk in on
vsto burst in on
47 4.1

To go into a room and see something private by accident

is sudden entry that focuses on interruption and not accidental observation
to interject
vsto burst in on
39 6.5

To say something quickly to interrupt someone

is about entering suddenly into places or events, not just speaking
to rush in
vsto burst in on
36 3.1

Act quickly without thinking, for example by going into a place

is sudden entry focusing on unexpected interruption rather than speed
to break in
vsto burst in on
30 3.4

To interrupt a conversation or activity without being invited

is sudden entry focused on unexpected interruption rather than general intrusion
to intrude on
vsto burst in on
22 4.6

To go into someone's space or life without permission

is sudden physical entry that stresses interruption more than meddling in affairs
to burst in
vsto burst in on
21 3.3

To enter a room suddenly and interrupt people

is the same meaning with no difference in use
to butt in
vsto burst in on
  • Informal
21 4.4

Interrupt someone who is speaking without being invited

is broader sudden entry into places or situations, not only conversations
to cut in
vsto burst in on
6 3.5

Interrupt someone who is speaking or doing something

is broader sudden entry, not limited to interrupting speech or acts
to irrupt
vsto burst in on
9.4

Suddenly appear or enter with force

is sudden entry that may interrupt but not necessarily forceful
to chisel in
vsto burst in on
  • Informal
7.7

Interrupt someone who is speaking by joining their conversation without waiting

is sudden entry into a situation rather than only verbal interruption

Antonyms

to sneak out
  • Informal
125 3.7

To leave a place quietly so no one notices you

1 7.9

Leave a place or conversation quietly to avoid attention

How Sudden

to barge in
  • Informal
59 5.5
to burst in on
3 5.2
to walk in on
47 4.1
to walk into
211 3.5
to enter
1.0

Surface Forms

burst in on infinitive
burst in on past participle
bursting in on present participle
bursts in on third person singular

Morphology

burst + in + on

The meaning 'to enter suddenly and interrupt' is directly derivable from combining 'burst' (enter with sudden force) with the spatial/targeting particles 'in' and 'on' that indicate entry into a place and onto/against people or an activity. This is a transparent verb+particle composition that follows regular English patterns and is likely inferable by a B1 learner who knows the constituent words.

Etymology

Burst in on comes from the image of someone suddenly forcing a door to enter: they burst in on people, surprising and interrupting them. So it now means 'to enter suddenly and interrupt'.