ascertain Hear it!

ascertain definition

as·cer·tain (as′ər tān′)

transitive verb

  1. Archaic to make certain or definite
  2. to find out with certainty

Etymology: ME acertainen < OFr acertainer < a-, to + certain, certain

Related Forms:

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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