milestone

  1. Noun.  A stone milepost (or by extension in other materials), one of a series of numbered markers placed along a road at regular intervals, typically at the side of the road or in a median.
  2. Noun.  An important event in a person's life or career, in the history of a nation, in the life of some project etc.

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This entry was last updated on RefTopia from its source on 3/20/2012.