ascertain
to find out definitely; learn with certainty or assurance; determine: to ascertain the facts.
Archaic. to make certain, clear, or definitely known.
Origin of ascertain
1Other words from ascertain
- as·cer·tain·a·ble, adjective
- as·cer·tain·a·bly, adverb
- as·cer·tain·er, noun
- as·cer·tain·ment, noun
- non·as·cer·tain·a·ble, adjective
- non·as·cer·tain·a·ble·ness, noun
- non·as·cer·tain·a·bly, adverb
- non·as·cer·tain·ment, noun
- pre·as·cer·tain, verb (used with object)
- pre·as·cer·tain·ment, noun
- un·as·cer·tain·a·ble, adjective
- un·as·cer·tain·a·bly, adverb
- un·as·cer·tained, adjective
- well-as·cer·tained, adjective
Words Nearby ascertain
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use ascertain in a sentence
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.
A major Supreme Court First Amendment decision could be at risk | Samantha Barbas | July 13, 2021 | Washington PostThey 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.
We Mapped the West 200 Years Ago, and We’re Still Living with the Mistakes | abarronian | July 12, 2021 | Outside OnlineLillie’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.
Design systems and SEO: does it help or hinder SERP achievements? | Joe Dawson | June 22, 2021 | Search Engine WatchIn 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.
New York’s Naughtiest Show (Maybe Avoid the Front Row) | Tim Teeman | January 18, 2014 | THE DAILY BEASTFor 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.
A Manual of Clinical Diagnosis | James Campbell Todd"We must endeavour to ascertain where Gordon is," replied Mr. Carr, as he re-enclosed the letter in his pocket-book.
Elster's Folly | Mrs. Henry WoodNo one outside the rebel camp could ever ascertain the exact number of prisoners, which was kept secret.
The Philippine Islands | John ForemanNo one could ascertain exactly in what capacity he found himself near the fighting-line.
The Philippine Islands | John ForemanThe attendant stooped over the bed to ascertain, and nodded in the affirmative.
Oliver Twist, Vol. II (of 3) | Charles Dickens
British Dictionary definitions for ascertain
/ (ˌæsəˈteɪn) /
to determine or discover definitely
archaic to make certain
Origin of ascertain
1Derived forms of ascertain
- ascertainable, adjective
- ascertainably, adverb
- ascertainment, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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