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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
has collapsed down
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "has collapsed down" is not standard in written English and may be considered redundant.
You can use it when describing something that has fallen or failed, but it is better to choose a more concise expression. Example: "The building has collapsed down after the earthquake, leaving debris everywhere."
Science
News & Media
Alternative expressions(6)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
3 human-written examples
Further, once the body has collapsed down to the point where its escape velocity is the speed of light, no physical force whatsoever could prevent the body from continuing to collapse down further – for this would be equivalent to accelerating something to speeds beyond that of light.
Science
The generally excellent Middle-earth: Shadow of Mordor rather falls flat when its content has collapsed down to mere trinket finding, as writer Yannick Le Jacq noted for Kotaku: "Why on earth am I playing a video game set in one of the most visually rich fantasy worlds, and collecting pieces of a basket?
News & Media
The yeast clamp loader structure shows that the A subunit also forms an inverted U, although the A' domain has collapsed down onto the AAA+ module of the A subunit, and there is no contact between the A' domain and the clamp [ 59].
Science
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
Yulia A. Rusanova, an automotive industry analyst at Deutsche Bank in Moscow, said the problem was that Avtovaz's planning horizons had collapsed down to a matter of months.
News & Media
Now that the ideological defense of Wall Street behavior has collapsed, brought down by the wreckage of deregulation, bankers and lobbyists are pursuing a new strategy: fighting the democratic process itself.
News & Media
In Devon a sea wall has collapsed, shutting down a vital railway link to the south-west.
News & Media
Industrial production has collapsed as fighting shut down mines and factories in the country's east.
News & Media
Whole districts are abandoned, public services have been shut down, employment has collapsed and the budget is crippled by Greek magnitudes of debt.
News & Media
The number of giraffes on the African continent has collapsed to an estimated 97,500, down from 150,000 in 1985, according to the International Union for Conservation of Nature (IUCN).
News & Media
But the Dynegy deal has collapsed, its main business has shut down, and Enron seems likely to file for bankruptcy.
News & Media
The main purpose of the hummingbird is to one day use it to rescue people in emergency situations (when a building has collapsed, for example) or to hunt down criminals.
News & Media
Expert writing Tips
Best practice
Consider using more concise alternatives like "has fallen" or "has crumbled" to avoid redundancy. While "has collapsed down" isn't incorrect, it can often be streamlined for clearer writing.
Common error
Avoid using "down" unnecessarily after verbs that already imply downward movement or failure. For example, instead of "the price has dropped down", simply write "the price has dropped".
Source & Trust
87%
Authority and reliability
3.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "has collapsed down" functions as a verb phrase indicating the action of something falling or failing. As noted by Ludwig, the phrase is not standard in written English and can often be considered redundant.
Frequent in
News & Media
50%
Science
50%
Formal & Business
0%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "has collapsed down" describes a state of failing or falling, but it's often considered redundant, as pointed out by Ludwig. While grammatically acceptable, more concise alternatives like "has fallen" or "has crumbled" are often preferred. Its usage spans across neutral contexts such as news and science, but leaning towards more formal alternatives is advisable for academic or professional writing. The contexts reveal it's used to describe diverse things, from car platforms to physical structures. Therefore, when writing, consider the context and choose the most concise and impactful phrasing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
has fallen down
A more direct and common synonym, focusing on the act of falling.
has fell down
Simply restates "collapsed" with a different tense of "fall", highlighting the action of falling.
has dropped down
Similar to "fallen", but with a sense of something being deliberately lowered or allowed to fall.
has disintegrated down
Uses a stronger verb, "disintegrated", implying a complete breakdown or destruction, slightly more intense than "collapsed".
has plummeted down
Replaces "collapsed" with "plummeted", indicating a rapid and steep fall, often used for prices or quantities.
has evaporated down
Employs "evaporated", suggesting a gradual disappearance or decline, differing from the more sudden image of "collapsed".
has disappeared down
Uses "disappeared", suggesting a vanishing or ceasing to exist, rather than a structural failure.
has decreased down
Employs "decreased", focusing on a reduction in quantity or value.
has split down
Replaces "collapsed" with "split", emphasizing a division or separation.
has bowed down
Uses "bowed", suggesting submission or yielding, a metaphorical collapse.
FAQs
How can I use "has collapsed down" in a sentence?
You can use "has collapsed down" to describe something that has fallen or failed, but consider if the "down" is necessary. For example: "The building "has collapsed down" after the earthquake, leaving debris everywhere."
What can I say instead of "has collapsed down"?
You can use alternatives like "has fallen", "has crumbled", or "has collapsed" depending on the context.
Which is correct, "has collapsed" or "has collapsed down"?
"Has collapsed" is generally preferred as it is more concise. The addition of "down" can be redundant as "collapse" already implies a downward movement.
Is "has collapsed down" grammatically incorrect?
While not strictly incorrect, "has collapsed down" is often considered redundant. The verb "collapse" inherently suggests a downward or inward falling, making the addition of "down" unnecessary.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
87%
Authority and reliability
3.8/5
Expert rating
Real-world application tested