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Definitions of ascertain:
  • verb:   learn or discover with certainty
  • verb:   after a calculation, investigation, experiment, survey, or study
  • verb:   find out, learn, or determine with certainty, usually by making an inquiry or other effort
  • verb:   be careful or certain to do something; make certain of something

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Search for ascertain at other dictionaries: OneLook, Oxford, American Heritage, Merriam-Webster, Wikipedia

See ascertain used in context: 5 poetry verses, 7 definitions

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