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ascertain
[ as-er-teyn ]
verb (used with object)
- to find out definitely; learn with certainty or assurance; determine:
to ascertain the facts.
- Archaic. to make certain, clear, or definitely known.
ascertain
/ ˌæsəˈteɪn /
verb
- to determine or discover definitely
- archaic.to make certain
Derived Forms
- ˌascerˈtainable, adjective
- ˌascerˈtainment, noun
- ˌascerˈtainably, adverb
Other Words From
- ascer·taina·ble adjective
- ascer·taina·bly adverb
- ascer·tainer noun
- ascer·tainment noun
- nonas·cer·taina·ble adjective
- nonas·cer·taina·ble·ness noun
- nonas·cer·taina·bly adverb
- nonas·cer·tainment noun
- preas·cer·tain verb (used with object)
- preas·cer·tainment noun
- unas·cer·taina·ble adjective
- unas·cer·taina·bly adverb
- unas·cer·tained adjective
- well-ascer·tained adjective
Word History and Origins
Origin of ascertain1
Word History and Origins
Origin of ascertain1
Example Sentences
Careless reporting, or even engaging in no attempt to ascertain facts at all is not enough to trigger liability, unless the defendant “recklessly disregarded” the truth.
They made notes and took sketches of the surroundings, checked the stars to ascertain their latitude, and sent the coordinates back to the land-survey office in Saint Louis.
Lillie’s study surveyed 561 people to ascertain whether couples who used those strategies were getting on with their partners better during the pandemic, and found that they did.
Take a deep breath, review your data, and ascertain what is to blame for your drop-in visitors.
In fact, it was the third-most effective predictor of sexual desire levels, behind only a “lack of erotic thoughts” and “fear,” although the researchers couldn’t ascertain why.
Last week, a Politico reporter phoned me to ascertain my thoughts on the new war.
We need a Special Select Committee on Benghazi to ascertain these facts and ensure that such a disaster never occurs again.
However, there is little existing research to ascertain this, or much else.
I try one final time to ascertain with Bradshaw what is in the ejaculatory mix.
For decades, people have been trying to ascertain the difference, but it mostly comes down to a level of taste.
One frequently wishes to ascertain the specific gravity of quantities of fluid too small to float an urinometer.
"We must endeavour to ascertain where Gordon is," replied Mr. Carr, as he re-enclosed the letter in his pocket-book.
No one outside the rebel camp could ever ascertain the exact number of prisoners, which was kept secret.
No one could ascertain exactly in what capacity he found himself near the fighting-line.
The attendant stooped over the bed to ascertain, and nodded in the affirmative.
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When To Use
What are other ways to say ascertain?
To ascertain something is to determine it or learn it with certainty or assurance. How is ascertain different from the learn, discover, and detect? Find out on Thesaurus.com.
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