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ascertain

/ˌæsəˈteɪn/
verb
  1. To find out definitely; to discover or establish.

    "As soon as we ascertain what the situation is, we can plan how to proceed."

    Similar: determine, discover, establish, find out, learn

  2. To make (someone) certain or confident about something; to inform.

  3. To establish, to prove.

Synonymsdetermine, discover, establish, find out, learn, work out

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ascertain — meaning, definition & examples | WordNote | WordNote