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Meaning & Definition of Ascertain in English

English

Ascertain

/æsərten/

verb

1. Establish after a calculation, investigation, experiment, survey, or study

  • "Find the product of two numbers"
  • "The physicist who found the elusive particle won the nobel prize"
    synonym:
  • determine
  • ,
  • find
  • ,
  • find out
  • ,
  • ascertain

2. Be careful or certain to do something

  • Make certain of something
  • "He verified that the valves were closed"
  • "See that the curtains are closed"
  • "Control the quality of the product"
    synonym:
  • see
  • ,
  • check
  • ,
  • insure
  • ,
  • see to it
  • ,
  • ensure
  • ,
  • control
  • ,
  • ascertain
  • ,
  • assure

3. Find out, learn, or determine with certainty, usually by making an inquiry or other effort

  • "I want to see whether she speaks french"
  • "See whether it works"
  • "Find out if he speaks russian"
  • "Check whether the train leaves on time"
    synonym:
  • determine
  • ,
  • check
  • ,
  • find out
  • ,
  • see
  • ,
  • ascertain
  • ,
  • watch
  • ,
  • learn

4. Learn or discover with certainty

    synonym:
  • ascertain