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to ascertain

to ascertain

59 5.7
To find out for sure by checking the facts
  • verb
  • /ˌæsərˈteɪn/
translation icon : averiguar
  • The detective worked late into the night to ascertain the facts of the case.
  • ascertain the truth
  • ascertain information
  • need to ascertain

And so Kant says, I sought to ascertain their number.

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Examples

  • Studies are needed to ascertain any potential harm and the cost-effectiveness of intensive statin therapy.

    Academic text (2011)
  • Our goal was to ascertain, if we could, whether the benefits of EXT outweigh the risks.

    Academic text (2008)
  • What are some examples of ways that we ascertain truth in society?

  • And if so, we really have to be able to ascertain what is actually happening, right?

  • What we were not able to ascertain at the time is how far up the chain of command this went.

  • As well, we did not ascertain how long ago they had received the injury.

    Academic text (2008)
  • I wanted to ascertain all the facts.

  • Further studies are needed, however, to ascertain if there are differences on other foreign policy questions.

    Academic text (1999)
  • Police learned he had no debts, and, as far as they could ascertain, no enemies.

    Fiction book (1990)
  • The location and date of the last set were ascertained from the captain or a crew member.

    Academic text (1991)

Synonyms

to find
vsto ascertain
1.0

To discover something while looking or by accident

involves deliberate effort to be sure and confirm the finding
to check
vsto ascertain
1.0

Examine something to make sure it is correct or true

involves deeper effort to make certainty rather than a brief look
to find out
vsto ascertain
2.1

To learn something you did not know, often by searching or asking

adds the extra aim of proving that discovery with certainty
to make sure
vsto ascertain
1.1

Check or do something so you are sure about it

uses investigation and effort specifically to reach certainty
to investigate
vsto ascertain
2.8

To look carefully at something to find facts

focuses more narrowly on arriving at certain knowledge
to check out
vsto ascertain
2.5

To look at or test something to learn more about it

is used when the goal is a certain, proven result
to confirm
vsto ascertain
1.8

To show that something is true by giving evidence

focuses on discovering facts until you are certain
to determine
vsto ascertain
781 2.3

To find out a fact by checking or measuring

stresses ensuring certainty about a fact through inquiry
to establish
vsto ascertain
  • Formal
319 4.1

To show something is true using evidence

emphasizes the act of learning with certainty by effort
to verify
vsto ascertain
251 3.5

To make sure something is true or correct

is about finding out with certainty by investigation
to get to the bottom of
vsto ascertain
137 3.9

Find the real reason for a problem by checking carefully

shares thorough inquiry but highlights making something certain
to check up on
vsto ascertain
93 3.2

To look at something to make sure it is correct and works well

aims more at reaching definite certainty through investigation
to scrutinize
vsto ascertain
  • US
70 6.2

To look at something very carefully to check for mistakes

uses careful work too but aims to be certain of a fact
to examine
vsto ascertain
  • Formal
53 3.1

To ask someone many questions in a formal way to find out facts

is less formal and stresses making the truth certain
to deduce
vsto ascertain
45 4.6

Figure out something from facts or evidence

relies more on finding facts and evidence through investigation
to probe
vsto ascertain
  • Literature
35 5.1

To ask careful questions to find hidden information

is broader, focusing on achieving definite certainty by inquiry

Antonyms

86 7.0

Make something hard to see or understand

How Certain

to verify
251 3.5
to ascertain
59 5.7
to investigate
2.8
to suspect
925 3.6
to guess
1.0

Surface Forms

ascertain infinitive
ascertained past participle
ascertaining present participle
ascertains third person singular

Morphology

ascertain = certain (semi-transparent) = as + certain

The prefix 'as-' is an intensifier, but the connection to 'certain' is not fully transparent without etymological knowledge.

Etymology

Ascertain comes from the small part a- added to certain, which comes from Latin certus meaning 'sure'. So to ascertain something is to 'make sure' of it or to find it out.