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
ascertain out
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "ascertain out" is not correct and not usable in written English.
The correct term would be "ascertain" on its own, which means to find out or determine something. Example: "We need to ascertain the facts before making a decision."
⚠ May contain grammatical issues
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
1 human-written examples
Conclusion: To ensure accurate population-based cancer survival rates, linkage with the National Death Index to ascertain out of state and late registered deaths is a necessary process for US central cancer registries.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
To ascertain the out of pocket (OOP) expenditure by patients due to HAI. 147 post-operative patients (47- cases with HAI and 100-controls, without HAI) meeting inclusion criteria, matched for sex ratio and type of surgeries were included in the final sample.
The study was also limited in that we did not ascertain the out-of-pocket expense for herbal remedies by patients, although most stated that herbal medicines (which we supposed were processed, imported products) were more expensive than conventional medicines.
The slogan "As if God did not exist" implies a simple and convincing message: We don't have to ascertain or rule out God's existence to be able to embrace the secular tradition.
News & Media
In fact we could neither ascertain nor rule out the use of contraceptives in the control group.
Despite the genetic similarity in the strains, no attempt was made by the researchers to ascertain and rule out the source of the outbreak in Bangladeshi policemen stationed at Mirebalais between September and October 2010.
Science
During the assessment visit, patients will also be asked to complete a short questionnaire to ascertain their out of pocket expenses for attendance (Additional file 1: Appendix 3), health status (EQ-5D) [ 36], job type (using CASCOT software) and the COPD Assessment Test.
Science
"If you want to find out whether Company A is weighing a merger with Company B, one way to find out is to ascertain whether any executives from Company A recently visited Company B. And businessmen have known for a long time now not to fly certain French airlines, since they eavesdrop and record passengers' conversations".
News & Media
To determine the optimum strategy for offering out-of-hours appointments, subgroup analysis was carried out to ascertain whether this effect is modified by prevalent or incident status, static or mobile screening sites, age of invitee, and time of year of appointment.
Science
People are obsessed with the idea that we've never had it so good, as a recent sold-out debate with that title at the Royal Geographical Society set out to ascertain.
News & Media
The vet came out to ascertain the cause of death, and National Parks collected the horn.
News & Media
Expert writing Tips
Best practice
Use "ascertain" without the preposition "out". It's a more direct and grammatically correct way to express the act of finding something out.
Common error
Avoid adding "out" after "ascertain". The word already implies finding something out, making the addition unnecessary and incorrect.
Source & Trust
84%
Authority and reliability
1.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "ascertain out" functions as a verb attempting to convey the action of discovering or finding something. However, it's considered grammatically incorrect; the verb "ascertain" already encompasses the meaning of finding something out. As Ludwig AI points out, the addition of "out" is unnecessary.
Frequent in
Science
50%
News & Media
50%
Formal & Business
0%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, while the phrase "ascertain out" might seem intuitive, it is generally considered grammatically incorrect. The verb "ascertain" already includes the meaning of finding something out, making the addition of "out" redundant. Ludwig AI confirms this assessment. It's better to use "ascertain" on its own or opt for alternative phrases like "find out" or "determine". Although some occurrences exist, these are infrequent, thus the phrase is not recommended for formal writing. Usage is spread across scientific and news media contexts, but this doesn't validate the phrase's correctness.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
determine
This alternative removes the preposition "out", focusing solely on the act of finding something definitively.
find out
This alternative uses a more common phrasal verb to express the act of discovering information.
discover
This focuses on the act of uncovering something previously unknown.
establish
This implies setting something as a definite fact after investigation.
verify
This suggests confirming the truth or accuracy of something.
confirm
This emphasizes validating or proving something to be true.
learn
This is a general term for gaining knowledge or information.
uncover
This implies revealing something that was previously hidden.
elicit
This focuses on drawing out information or a response from someone.
deduce
This involves reasoning to arrive at a conclusion.
FAQs
Is "ascertain out" grammatically correct?
No, the correct term is simply "ascertain". Adding "out" is grammatically incorrect and redundant.
What does "ascertain" mean?
"Ascertain" means to find something out for certain; to make sure of something.
What can I say instead of "ascertain out"?
How to use "ascertain" correctly in a sentence?
Example: "We need to ascertain the facts before making a decision." Avoid adding "out" after "ascertain".
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
84%
Authority and reliability
1.8/5
Expert rating
Real-world application tested