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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
under close observation
Grammar usage guide and real-world examplesUSAGE SUMMARY
"under close observation" is a correct and usable phrase in written English.
You can use it when you want to describe someone or something that is being watched or examined very carefully. For example: "The doctors are keeping the patient under close observation to monitor her improving condition."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Alternative expressions(20)
closely monitored
under strict surveillance
under surveillance
closely watched
under close control
under close monitoring
under close supervision
under close surveillance
under close watch
under close examination
under close police
under close arrest
under close checking
under close temperature
under strict observation
under close guard
under close patient
under close inspection
under close threat
under close attention
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
Their populations are stable but under close observation.
News & Media
Latvia's election in the autumn will come under close observation.
News & Media
She has been placed under close observation for 21 days, Ebola's incubation period.
News & Media
It said one of those in hospital was under close observation.
News & Media
Mr. Durst is being held in an isolation cell under close observation, the police said.
News & Media
He is currently under close observation at Stapeley Grange Wildlife Centre in Cheshire.
News & Media
However, another 42 cases were suspected, and some 200 people were under close observation for infection.
Encyclopedias
The media law has attracted an unwanted spotlight and Mr Orbán is now under close observation.
News & Media
Ms. Hashemi is under close observation at Ibn Sina Hospital, an American-run medical center in the Republican Palace.
News & Media
Wildlife official Ronnie Sumiller, who led the hunt for the 20-foot (6.1 metre) crocodile, nicknamed Lolong, said the reptile was under close observation for signs of stress.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
1 human-written examples
Thirty representative courses that used this adaptive School for All system were under close observations and investigation.
Science
Expert writing Tips
Best practice
In scientific studies, clarify what specific parameters or behaviors are "under close observation" to provide clarity and focus in your reporting.
Common error
Avoid using "under close observation" without specifying who is observing and what aspects are being observed. Vague usage weakens the impact and clarity of your statement.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "under close observation" functions as a prepositional phrase that modifies a verb, adjective, or noun. It indicates the state of being carefully monitored or watched. As Ludwig AI suggests, this typically implies a meticulous tracking of developments.
Frequent in
News & Media
32%
Science
50%
Encyclopedias
6%
Less common in
Formal & Business
4%
Wiki
4%
Academia
1%
Ludwig's WRAP-UP
In summary, the phrase "under close observation" is a common and grammatically correct expression used to indicate that someone or something is being carefully monitored. Ludwig provides numerous examples demonstrating its use across diverse contexts, from medical settings to political landscapes. As Ludwig AI points out, the phrase conveys meticulous tracking and is suitable for formal, neutral, and even scientific registers. Related phrases, such as "closely monitored" and "subject to rigorous scrutiny", offer nuanced alternatives for expressing similar concepts. Remember to specify who is observing and what is being observed to avoid vagueness in your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
closely monitored
A passive construction emphasizing the act of monitoring, suitable for describing systems or individuals being tracked.
closely watched
A shorter and more direct alternative, suitable for informal contexts where brevity is preferred.
under careful surveillance
Emphasizes continuous monitoring, often for security or investigative purposes. It introduces a sense of vigilance that may not be present in the original phrase.
under strict surveillance
Implies a higher level of watchfulness, usually when there are concerns or threats that need to be controlled. This phrase is used in security contexts.
subject to intensive monitoring
Stresses the depth and frequency of monitoring activities. Emphasizes a proactive and thorough approach to oversight.
subject to rigorous scrutiny
Highlights detailed examination and critical assessment. It shifts the focus to a more formal and critical evaluation process.
under constant vigilance
Emphasizes relentless and continuous watchfulness, especially against potential dangers. This emphasizes a proactive approach.
under diligent supervision
Suggests watchful oversight, particularly in situations where guidance or control is necessary. Supervision implies a guiding role.
subject to thorough inspection
Focuses on a detailed and complete examination to identify issues or ensure compliance. This phrase is typically used in quality control settings.
under close control
Shifts the focus from observation to management and regulation, indicating tight rein over activities or processes.
FAQs
How can I use "under close observation" in a sentence?
You can use "under close observation" to describe a situation where someone or something is being carefully monitored. For example, "The patient is "under close observation" for any signs of complications".
What phrases are similar to "under close observation"?
Alternatives include "closely monitored", "under strict surveillance", or "subject to rigorous scrutiny", depending on the nuance you want to convey.
Is it appropriate to use "under close observation" in formal writing?
Yes, "under close observation" is suitable for formal writing. It is a clear and professional way to indicate careful monitoring. However, ensure the context warrants such emphasis.
What's the difference between "under close observation" and "under surveillance"?
"Under close observation" generally implies careful monitoring for changes or developments, whereas "under surveillance" often suggests monitoring for security or investigative purposes. The former is more neutral, while the latter carries a connotation of suspicion or threat.
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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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested