Used and loved by millions
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
endangered by
Grammar usage guide and real-world examplesUSAGE SUMMARY
"endangered by" is a correct and usable phrase in written English.
It is typically used to show that something or someone is at risk or in danger because of a particular factor or situation. Example 1: The polar bear population is endangered by the melting polar ice caps, as it is their primary habitat. Example 2: The archaeological site is endangered by looting and vandalism from treasure hunters. Example 3: The species of bird is endangered by the loss of its natural habitat due to deforestation. Example 4: The airline industry is endangered by the current economic crisis and travel restrictions. Example 5: The hiker was endangered by the sudden blizzard that hit the mountain.
✓ Grammatically correct
News & Media
Encyclopedias
Science
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
59 human-written examples
Agricultural exports endangered by water shortages.
News & Media
Are they endangered by the buyback?
News & Media
"Kosovo is not endangered by Serb integration.
News & Media
The single-valedictorian tradition is also being endangered by lawsuits.
News & Media
Last year, it was endangered by a flood.
News & Media
Other votes were endangered by a corporation's good deed.
News & Media
The French art de vivre was endangered by a neoliberal, productivist vision of work.
News & Media
It is considered endangered by the International Union for Conservation of Nature and Natural Resources (IUCN).
Encyclopedias
It was classified as critically endangered by the IUCN in 2013.
Encyclopedias
In the 4th century Phocis was constantly endangered by Boeotian aggression.
Encyclopedias
No one else can be harmed or endangered by the action — a fundamental rule.
News & Media
Expert writing Tips
Best practice
Use "endangered by" to clearly and directly indicate the cause of a threat or risk to something. Ensure the subject and object are logically connected to convey a clear cause-and-effect relationship.
Common error
Avoid using "endangered by" when the threat is minor or insignificant. The phrase implies a serious risk of harm or extinction; use milder alternatives like "affected by" or "influenced by" for less severe situations.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "endangered by" functions primarily as a prepositional phrase that modifies a noun or pronoun, indicating the cause or agent that poses a threat. Ludwig AI confirms its usage in diverse contexts, highlighting its role in specifying the source of endangerment.
Frequent in
News & Media
51%
Science
24%
Encyclopedias
15%
Less common in
Wiki
7%
Formal & Business
3%
Reference
0%
Ludwig's WRAP-UP
The phrase "endangered by" is a common and grammatically correct way to express that something is at risk due to a specific cause. As Ludwig AI confirms, it's widely used in news, science, and encyclopedic contexts to highlight threats to various subjects. While alternatives like "threatened by" and "jeopardized by" exist, "endangered by" directly emphasizes the cause of the risk. When using this phrase, ensure that the level of threat aligns with the seriousness implied by "endangered", avoiding overuse in situations where the risk is minor.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
threatened by
Implies a direct threat, similar to being endangered.
imperiled by
A more formal synonym for endangered, suggesting serious risk.
jeopardized by
Highlights the risk of failure or loss due to something.
at risk from
Indicates a state of vulnerability to a specific factor.
made vulnerable by
Emphasizes the process of becoming susceptible to harm.
compromised by
Suggests a weakening or impairment due to an external factor.
affected by
A broader term indicating influence, which can be negative.
susceptible to
Highlights a predisposition to being harmed or affected.
prejudiced by
Implies a negative impact or disadvantage caused by something.
undermined by
Suggests a gradual weakening or erosion of something's stability.
FAQs
How can I use "endangered by" in a sentence?
Use "endangered by" to indicate that something is at risk of harm or extinction due to a specific factor. For instance, "The coral reefs are endangered by rising ocean temperatures".
What are some alternatives to "endangered by"?
Depending on the context, you can use alternatives like "threatened by", "imperiled by", or "jeopardized by".
Which is correct: "endangered by" or "in danger by"?
"Endangered by" is the more common and grammatically sound phrase. "In danger by" is less idiomatic and may sound awkward.
What's the difference between "endangered by" and "affected by"?
"Endangered by" implies a serious risk of harm or extinction, while "affected by" suggests a more general influence or impact, which may not necessarily be negative.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested