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Synonyms

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.

In the era of high-risk high-reward batting, where contributions were not measured in milestones, Samson became the folk hero who strove only for high impact and was rewarded with consistency by the cricketing gods.

From BBC

Chester, now aged three, was diagnosed with severe global developmental delay, which meant he was not reaching the expected developmental milestones for his age, including walking.

From BBC

Cantor analyst Troy Jensen noted Wednesday that management at all four companies “remained extremely positive with respect to the industry and conviction regarding the future developments and technical milestones.”

From Barron's

In a LinkedIn post about the case, he wrote that the decision “represents a philosophical milestone — one that exposes how deeply our intellectual property system struggles to confront autonomous machine creativity.”

From Los Angeles Times

The only player to reach that milestone younger?

From Barron's