Vocabulary in context
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Ascertain
To find out or determine something with certainty through careful investigation or analysis.
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Imagine This
Imagine a detective collecting clues, cross-checking lab results, and comparing multiple sources until the true cause or fact is clearly established beyond doubt.
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Sounds Like
AS-ər-tayn
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Looks Like
resembles the word 'certain' with an 'as-' prefix added
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Remember This
Ascertain means to confirm or verify something with evidence. It is more formal than 'find out' and is common in legal, scientific, and investigative writing.
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Other Forms
ascertainedverb (past participle)
ascertainingverb (present participle)
ascertainmentnoun
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Connect With
determine, verify, confirm, establish, uncover
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Note
Do not confuse with 'ascertainable' (capable of being ascertained) or with 'assert' (to declare confidently). Ascertain emphasizes obtaining proof to establish truth.
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Study Deeper
Examples
- Investigators sought to ascertain the cause of the fire by examining the scene and reviewing surveillance footage.
- The auditor's job is to ascertain that every entry in the ledger is supported by a receipt.
Synonyms
determineverifyconfirmestablishdiscover
Antonyms
doubtguessassume
Etymology
From Middle English ascertainen, via Old French acertainder/acertainer meaning to certify or make certain; from Latin certus meaning certain.
Mnemonic
As-CERT-ain: When you ascertain something, you make it CERTAIN by checking the facts.
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Similar Words
Related words and words with the same part of speech.
Abandon
verbTo give up completely, to desert or leave behind, or to relinquish a claim, plan, or responsibility.
Abate
verbTo decrease in amount or intensity; to reduce or end something.
Abolish
verbTo formally end or repeal a system, practice, or institution; to officially put an end to something established.
Abridge
verbTo shorten (a text, speech, or other work) by omitting parts; to condense.
Abscond
verbTo depart secretly or flee, especially to avoid detection or arrest.
Absolve
verbTo free someone from blame or responsibility; to pardon or exonerate.
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