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milestone

[mahyl-stohn] /ˈmaɪlˌstoʊn/
noun
1.
a stone functioning as a milepost.
2.
a significant event or stage in the life, progress, development, or the like of a person, nation, etc.:
Her getting the job of supervisor was a milestone in her career.
Origin
1740-1750
1740-50; mile + stone
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for milestone
  • Whatever else happened, the milestone of completing the doctorate would buoy my spirits.
  • But its significance is deeper and wider than that of being a mere historical milestone.
  • Mapping milestone emphasizes complexity of disease.
  • It seems only reasonable that there would be some type of publicity for this milestone.
  • The growing movement to host a presidential debate focused on science has reached a new milestone.
  • News survey form struck me the same way, as a kind of milestone.
  • For all that, they represent an important milestone on the road to the future.
  • But new research today shows that the milestone has been a mixed bag for one.
  • And already two signposts to the next milestone have come into view.
  • And so this discovery is fundamental and a milestone for cosmology.
British Dictionary definitions for milestone

milestone

/ˈmaɪlˌstəʊn/
noun
1.
a stone pillar that shows the distance in miles to or from a place
2.
a significant event in life, history, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for milestone
n.

1746, from mile + stone (n.).

Online Etymology Dictionary, © 2010 Douglas Harper
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