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milestone

American  
[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.


milestone British  
/ 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

Etymology

Origin of milestone

First recorded in 1740–50; mile + stone

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Rather than the old “Buy 10 and get one free” model, companies today often design their programs like a game, using time-sensitive missions, milestone tracking, and peer ranking to encourage repeat visits and higher spending.

From Barron's

The latest magnetic field model marks an important milestone for Swarm.

From Science Daily

As part of the arrangements, AMD agreed to give Meta and OpenAI warrants to each buy up to 160 million AMD shares—totalling roughly 20% of the company—so long as certain milestones are met.

From The Wall Street Journal

Management’s call with analysts later Wednesday will likely focus on regulation and what milestones are required to give the company confidence to accelerate investments, the analysts write.

From The Wall Street Journal

Vir is also eligible for up to $1.37 billion in future milestone payments, along with tiered royalties on sales outside the U.S.

From Barron's