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ascertain - definition and synonyms

 
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verb [intransitive/transitive] formal ascertain pronunciation in American English /ˌæsərˈteɪn/
Word Forms
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present tense
I/you/we/theyascertain
he/she/itascertains
present participleascertaining
past tenseascertained
past participleascertained
  1. to find out something
    Police are trying to ascertain the facts of the case.
    ascertain whether/what/how etc.: We need to ascertain whether the project is feasible.
    ascertain from: This much could easily be ascertained from the newspapers.
    ascertain the cause/nature/extent of something: Experts were unable to ascertain the cause of the accident.
    ascertain that: The police have ascertained that he knew the victim.

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