milestone

noun

mile·​stone ˈmī(-ə)l-ˌstōn How to pronounce milestone (audio)
1
: a stone serving as a milepost (see milepost sense 1)
2
: a significant point in development
Graduating from college was an important milestone in her life.

Illustration of milestone

Illustration of milestone
  • milestone 1

Examples of milestone in a Sentence

the new drug was regarded as a milestone in the treatment of heart disease
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
This week may bring a milestone event or situation in regard to a community for you, such as a festive party, award show or networking mixer. Kyle Thomas, People.com, 12 Jan. 2025 Celebrate milestones and achievements, showing the tangible impact of employees’ efforts. Bryan Robinson, Forbes, 12 Jan. 2025 By the end of the weekend, the blue blur’s latest adventure will surpass $200 million domestically — a milestone that only eight other 2024 releases achieved. J. Kim Murphy, Variety, 11 Jan. 2025 From career milestones to new music releases to major announcements and those little important moments, Billboard editors highlight uplifting moments in Latin music. Jessica Roiz, Billboard, 11 Jan. 2025 See all Example Sentences for milestone 

Word History

First Known Use

1662, in the meaning defined at sense 1

Time Traveler
The first known use of milestone was in 1662

Dictionary Entries Near milestone

Cite this Entry

“Milestone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/milestone. Accessed 18 Jan. 2025.

Kids Definition

milestone

noun
mile·​stone ˈmī(ə)l-ˌstōn How to pronounce milestone (audio)
1
: a milepost made of stone
2
: an important point in progress or development

More from Merriam-Webster on milestone

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