Breakdown vs Collapse

When to use each in English, with meaning, register, and examples.

Breakdown

Top 2,000 (common) C1 noun

Collapse

Top 2,000 (common) B2 verb

	Breakdown	Collapse
Pronunciation	🇬🇧 /["/ˈbreɪkdaʊn/"]/ 🇺🇸 /["/ˈbreɪkdaʊn/"]/	🇬🇧 //kəˈlæps// 🇺🇸 //kəˈlæps//
Meaning	A failure or collapse of something, like a machine or system.	To fall down or break apart suddenly
Example	The breakdown of the car left us stranded on the highway.	The old bridge began to collapse under the weight of the truck.
Register	Neutral	Neutral
How common	Top 2,000 (common)	Top 2,000 (common)
CEFR level	C1	B2
Part of speech	noun	verb
Collocations	mechanical, occur, service, truck, vehicle, serious, complete, irretrievable, cause, lead to, prevent, breakdown in, breakdown of, detailed, full, cost, prepare, give somebody, provide (somebody with), breakdown by, breakdown of, emotional, mental, nervous, have, suffer, the brink of a nervous breakdown, the edge of a nervous breakdown, the verge of a nervous breakdown	collapse suddenly, collapse under pressure, collapse of a building, economic collapse, collapse into despair
Antonyms	repair, fix, solution	rise, stand, build
Common mistakes	Using 'breakdown' instead of 'break down' as a verb phrase., Confusing 'breakdown' with 'breakthrough', which has a very different meaning., Using 'breakdown' in contexts where a different term, like 'failure', is more specific.	Confusing with 'collapse' as a noun; 'collapse' is a verb., Using 'collapse' without an object (it can be intransitive)., Mixing up with 'fall' in contexts where 'collapse' suggests sudden failure.
Usage notes	Use 'breakdown' when talking about mechanical failures or emotional collapse. It’s appropriate in both technical and everyday contexts. Avoid using it in formal writing about unrelated topics.	Use 'collapse' for physical structures or figurative situations. In formal contexts, it may refer to systems or economies.

See it in real clips

The Pitt › S1 E1

Intense exercise caused muscle breakdown.

Breakdown

Three layers down, the dreams are gonna collapse with the slightest disturbance.

The Pitt › S1 E1

Diastolic collapse of the right atrium and right ventricle.

Three layers down, the dreams are gonna collapse with the slightest disturbance.

The Pitt › S1 E1

Diastolic collapse of the right atrium and right ventricle.

Collapse

Frequently asked questions: Breakdown vs Collapse

What's the difference between Breakdown and Collapse?

Breakdown: A failure or collapse of something, like a machine or system. Collapse: To fall down or break apart suddenly

Which is more advanced: Breakdown and Collapse?

Breakdown is the highest level, at C1, on the CEFR scale.

Are Breakdown and Collapse the same CEFR level?

Breakdown: C1, Collapse: B2 on the CEFR scale.

What part of speech are Breakdown and Collapse?

Breakdown: noun, Collapse: verb.

Can you show an example of each?

Breakdown: The breakdown of the car left us stranded on the highway. Collapse: The old bridge began to collapse under the weight of the truck.

Can I use Breakdown and Collapse interchangeably?

Not always. Breakdown and Collapse are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.