milestone

A milestone is a significant event in your life. Often a milestone marks the start of a new chapter. For example, the day you graduated from high school was a milestone in your life.

Milestone literally refers to a roadside marker that lists the distance to a particular location. These days, the word is more often used figuratively to refer to significant events in life, like graduating from college or getting married. It acts sort of like the road sign: it's often a moment when you reflect on where you stand in life. A milestone can also be a nonpersonal event that results in a big change, such as a milestone victory or a company's sales milestone.

Definitions of milestone
  1. noun
    stone post at side of a road to show distances
    synonyms: milepost
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    type of:
    insignia, mark, marker, marking
    a distinguishing symbol
  2. noun
    a significant event in your life (or in a project)
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    type of:
    juncture, occasion
    an event that occurs at a critical time
Word Family