burst out
2 meanings
suddenly start laughing or crying
What does "burst out" mean in this sense?
Examples
- When she saw his costume, she burst out laughing and couldn't stop.
- He burst out crying in the middle of the speech, which surprised everyone.
- I was trying to stay serious, but I nearly burst out giggling during the meeting.
How to use it
The gerund (laughing, crying, sobbing, etc.) is always required — the phrase is incomplete without it.
The moment the teacher turned her back, the whole class burst out laughing.
Use 'at' to introduce the thing that caused the sudden reaction.
She burst out laughing at the look on his face.
This pattern highlights how unexpected or poorly timed the outburst was.
He burst out crying in the middle of his presentation, and had to take a moment to collect himself.
Use 'almost' or 'nearly' to describe a reaction that was barely suppressed.
I nearly burst out giggling when my phone went off during the ceremony.
These constructions emphasise the involuntary, difficult-to-control nature of the reaction.
She was trying not to burst out laughing, but the joke was too good.
Common Collocations
Common Mistakes
After 'burst out', you must use a gerund (the -ing form), not an infinitive with 'to'. This is the most common error learners make with this phrasal verb.
'Burst out' is followed by a gerund (burst out laughing), while 'burst into' is followed by a noun (burst into laughter/tears). Both mean the same thing, so you just need to match the correct form to the correct phrase.
Unlike many phrasal verbs, 'burst out' cannot stand alone — it always needs a gerund to complete the meaning. Without one, the sentence feels unfinished.
Usage
This phrasal verb is neutral in register and works in both spoken and written English. It is nearly always followed by 'laughing' or 'crying' in everyday use; other gerunds are less frequent.
say something suddenly and loudly
Sense 2: What does "burst out" mean?
Examples
- 'I've had enough of this!' he burst out, slamming his hand on the table.
- She burst out that it was completely unfair and stormed out of the room.
- 'Why didn't you tell me?' Tom burst out as soon as he heard the news.
How to use it
The most common pattern, where the spoken words appear as a direct quotation either before or after the verb.
'That's completely wrong!' she burst out, her voice shaking with anger.
In narrative writing, the quoted words often come first and 'burst out' follows as a speech tag — a very characteristic stylistic feature of this phrasal verb in fiction.
'Nobody told me anything!' Marcus burst out, pushing back his chair.
When reporting speech indirectly, 'that' introduces the content of what was said.
He burst out that he had been waiting for over an hour and was not going to wait any longer.
Used to describe the type of outburst — frustration, protest, indignation — rather than quoting the exact words.
She burst out in protest when she heard her name had been left off the list.
Common Collocations
Common Mistakes
When 'burst out' is followed by a gerund like 'laughing' or 'crying', it means to suddenly start doing something — not to say something. Only use this entry's sense when the verb introduces spoken words as direct speech or a that-clause.
'Burst out' in this sense is intransitive and cannot take a direct noun object. If you want to say someone revealed a secret impulsively, use 'blurt out', which is transitive.
This phrasal verb sounds unnatural in the present continuous or future simple because it describes a spontaneous, unplanned moment — not an ongoing action or a planned future event.
Usage
This phrasal verb is most common in written fiction and storytelling as a speech tag, often placed after the direct speech. It is neutral in register and works in both British and American English.
Frequently Asked Questions
Can 'burst out' be used in the passive, like 'laughter was burst out'?
No — 'burst out' is intransitive, which means it has no object and cannot be made passive. The subject is always the person (or group) doing the bursting out, not someone or something receiving the action.
Does 'burst out' always mean laughing or crying?
Not exclusively, though those are by far the most common uses. You can also say 'burst out sobbing', 'burst out giggling', 'burst out cheering', or even 'burst out singing'. What all these have in common is a sudden, uncontrollable emotional or expressive reaction.
Can I use 'burst out' to describe a group of people, not just one person?
Yes, absolutely. It works naturally with collective subjects — for example, 'the whole audience burst out laughing' or 'everyone burst out cheering'. The sense of a sudden, shared reaction fits perfectly.
Is there a difference in meaning between 'burst out laughing' and 'burst into laughter'?
No, the meaning is the same — both describe a sudden, uncontrollable fit of laughter. The only difference is grammatical: 'burst out' is followed by a gerund (-ing form), while 'burst into' is followed by a noun. Choose whichever sounds more natural in context.
Can I use 'burst out' to describe something that happened gradually, or only sudden reactions?
'Burst out' always implies something sudden and involuntary — it would sound odd describing a slow or deliberate reaction. If the laughing or crying built up gradually, a phrase like 'started crying' or 'began laughing' would be more natural.
Can I use 'burst out' in the passive voice?
No — 'burst out' in this sense is intransitive, which means it has no object and cannot be made passive. There is no grammatical way to form a passive sentence with it.
Does 'burst out' always mean saying something? I've seen it used differently.
Yes, 'burst out' has more than one sense. When followed by direct speech or a that-clause, it means to say something suddenly and loudly. When followed by a gerund like 'laughing' or 'crying', it means to suddenly start doing that action. The word that follows 'out' tells you which sense is being used.
Is it natural to put the quoted words before 'burst out' instead of after?
Yes — in fact, placing the direct speech first and 'burst out' afterwards is a very characteristic pattern, especially in fiction: for example, ''I've had enough!' she burst out.' This word order highlights the emotional force of the words before explaining how they were delivered.
What kinds of emotions typically lead someone to 'burst out'?
This verb is strongly associated with emotions that are difficult to contain — frustration, indignation, surprise, anger, or protest. The implication is always that the speaker could not hold the words back. It would sound odd with calm or neutral emotions.
Is 'burst out' more common in writing or in speech?
In this sense, it appears most often in written narrative — novels, short stories, and reported speech — where it functions as a vivid speech tag. It is less common in everyday conversation, though you might hear it in informal storytelling when someone is describing an emotional moment.
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