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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
checked twice
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "checked twice" is correct and usable in written English.
You can use it to indicate that something has been verified or examined two times for accuracy or correctness. Example: "Before submitting the report, I made sure it was checked twice to avoid any errors."
✓ Grammatically correct
Science
News & Media
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
60 human-written examples
Maybe even checked twice.
News & Media
"E-mail is checked twice daily".
News & Media
Following last feeding of MATRIX (LFM), gilts were checked twice daily for estrus.
Science
Since passing through security, I had answered questions and had my papers checked twice.
News & Media
He had a new narcolist, which he had checked twice for accuracy.
News & Media
Every inch of the system's rails is supposed to be checked twice a week for imperfections.
News & Media
They were checked twice daily for fever and monitored for other symptoms of the deadly disease.
News & Media
I had to be checked twice yearly from the age of seven to see if I was developing cancer.
News & Media
The prisoners are weighed every day, and their blood pressure and temperature are checked twice a day, Mr. Lefler said.
News & Media
In total, 1,746 city locations were originally transcribed and checked twice by research assistants for transcription errors and accuracy.
Science & Research
Cages were checked twice daily for neonates after the first female gave birth, and neonates were immediately collected and weighed after birth.
Science
Expert writing Tips
Best practice
Use "checked twice" to emphasize thoroughness and reduce potential errors, especially in critical documents or procedures.
Common error
Avoid using "checked twice" in contexts where a single check is sufficient. Overusing it can make your writing sound repetitive or imply a level of paranoia that's unwarranted.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "checked twice" functions as a verb phrase indicating the action of verifying or examining something on two separate occasions. Ludwig shows that this expression is frequently used to emphasize thoroughness.
Frequent in
Science
52%
News & Media
32%
Formal & Business
8%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "checked twice" is a grammatically correct and commonly used expression to indicate that something has been verified or examined on two separate occasions for accuracy. Ludwig highlights its versatility across diverse contexts, including science and news media. While ""double-checked"" is a close synonym, "checked twice" can be used to simply state an action that happened two times. The frequency of the phrase indicates it's a valuable tool for emphasizing accuracy and thoroughness in writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
double-checked
A common and concise way to convey the action of checking something a second time.
gone over twice
Focuses on repeating the action of thoroughly examining something
verified two times
Emphasizes the act of confirming something's truth or accuracy on two separate occasions.
checked over again
Indicates a thorough check that is then repeated for extra assurance.
confirmed twice
Emphasizes that confirmation occurred on two separate occasions.
re-examined
Highlights a second, more in-depth look at something.
reviewed a second time
Focuses on a formal re-evaluation or assessment.
inspected again
Focuses on a careful examination that is performed more than once.
scrutinized again
Highlights a second instance of very careful and critical examination.
verified meticulously again
Indicates repeating the process of confirming something's accuracy, emphasizing thoroughness.
FAQs
How can I incorporate "checked twice" into a sentence?
You can use "checked twice" to emphasize that something was verified or examined two times to ensure accuracy or correctness. For example, "Before submitting the report, I made sure it was checked twice to avoid any errors."
What are some alternatives to "checked twice"?
Alternatives include "double-checked", "verified two times", or "inspected again".
When is it appropriate to use "checked twice" in formal writing?
It is appropriate to use "checked twice" in formal writing when emphasizing the importance of accuracy and the need to minimize errors. This is particularly relevant in scientific, technical, or legal contexts.
Is "checked twice" interchangeable with "double-checked"?
While similar, ""double-checked"" implies the action of immediately rechecking something, while "checked twice" simply means the action was completed two times at one or different moments. The best fit depends on the context.
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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
4.5/5
Expert rating
Real-world application tested