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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
be under detainment
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "be under detainment" is not correct in standard English; the correct term is "be under detention." You can use it when referring to someone being held in custody, typically by law enforcement or in a school setting.
Example: "The suspect will be under detention until further notice from the authorities."
⚠ May contain grammatical issues
News & Media
Science
Wiki
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
1 human-written examples
I would no longer be under detainment.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
The former rebel has been in detainment since his capture, and veers between bitter, resigned silences to hours-long rants.
News & Media
With increasing frequency, the international migration authorities are launching detainment programs with limited healthcare; for example, in Mexico, Morocco, Egypt, Turkey, Croatia, Indonesia, Malaysia, Nauru and Papua New Guinea [ 4, 5, 9].
Science
Hence, the government is resorting to detainment.
News & Media
In a permanent war zone called Britain, smoke pours into the air as illegal immigrants are swept into detainment camps.
News & Media
In early May, Damjanović led the SDK Chetnik formations under his command into northwestern Italy, where they surrendered to the British and were placed in detainment camps.
Wiki
Rape and beatings have been reported in detainment centres, and one death has been confirmed.
News & Media
Rape and beatings have been reported in detainment centers and one death has been confirmed.
News & Media
No one proposes some system of automatic condemnation; what the European (and Canadian) model entails is indictments, detainments, trials, and fines.
News & Media
The devil we know may be better than the detainment we don't.
News & Media
Industry officials said more than 100 foreigners were detained; American officials acknowledged the detainments but would not put a number on them.
News & Media
Expert writing Tips
Best practice
Always use "detention" instead of "detainment" when referring to the state of being held in custody.
Common error
Avoid using "detainment" as a noun. While "detain" is a verb, the correct noun form for the state of being detained is "detention".
Source & Trust
87%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "be under detainment" is intended to function as a description of a state, specifically being subjected to a period of forced holding or confinement. However, this usage is grammatically incorrect. Ludwig confirms that the proper term is detention.
Frequent in
News & Media
33%
Science
33%
Wiki
33%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "be under detainment" is a grammatically incorrect construction. The correct term to use is "be under detention". Although the example provided by Ludwig includes the incorrect term in a sentence from The Guardian, it's crucial to recognize that "detainment" is not standard English as a noun. When conveying the state of being held in custody, always opt for "detention" or other suitable alternatives such as "held in custody" or "detained". Ludwig's analysis underscores the importance of using precise language, especially in formal or legal contexts.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
be in detention
Uses the correct noun form 'detention' instead of the incorrect 'detainment'.
be detained
A concise way of saying that someone is being held.
be held in custody
Emphasizes the legal aspect of being held by authorities.
be kept in custody
Highlights the act of being kept or maintained in a state of custody.
be in confinement
Focuses on the restriction of movement and isolation.
be under arrest
Specifically indicates that the person has been formally arrested.
be imprisoned
Implies a longer-term sentence within a prison.
be incarcerated
A more formal synonym for 'be imprisoned'.
be apprehended
Emphasizes the act of capturing and taking someone into custody.
be interned
Suggests confinement, often during wartime or civil unrest.
FAQs
What is the correct noun form: detainment or detention?
The correct noun form is "detention". "Detainment" is not standard English.
What does it mean to be under detention?
To be under "detention" means to be held in custody, typically by law enforcement or school authorities.
What can I say instead of "be under detainment"?
Is "detainment" ever correct to use?
"Detainment" is not a standard noun. The correct term is "detention".
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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
2.8/5
Expert rating
Real-world application tested