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Definition of "milestone" []

  • A stone marker set up on a roadside to indicate the distance in miles from a given point. (noun)
  • An important event, as in a person's career, the history of a nation, or the advancement of knowledge in a field; a turning point. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "milestone" in a sentence
  • "Alas, our poor little 'inscription,' so far as I remember it, was not more criminal than that of a number on a milestone; in fact the whole adventure was like that of setting up an authentic _milestone_ in a tract of country"
  • "Analysts say the milestone is a “confidence booster” and “reinforces the growing belief on Wall Street that the recovery in the economy and markets remains on track.”"
  • "Congraulations Scott, I think this milestone is a testament to all your hard work."