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milestone
noun
mile·stone
ˈmī(-ə)l-ˌstōn 
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.
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
Willy Chavarria has secured a strategic minority investment from Chalhoub Group, WWD has learned, marking a significant milestone for the designer whose culturally conscious menswear has resonated far beyond New York.
—
Ritu Upadhyay, Footwear News, 14 Oct. 2025
Hosted by award-winning actor, writer, and producer Aasif Mandvi, the milestone event is said to host a variety of leading filmmakers, industry professionals, and special guests for an evening celebrating excellence in documentary filmmaking.
—Marcus Jones, IndieWire, 14 Oct. 2025
The milestone follows León’s relationship with his manager and business partner, Jorge Juárez, who began overseeing his career nearly two years ago.
—Leila Cobo, Billboard, 14 Oct. 2025
Key milestones achieved The flight test commenced with the Super Heavy booster successfully igniting all 33 Raptor engines.
—Mrigakshi Dixit, Interesting Engineering, 14 Oct. 2025
See All Example Sentences for milestone
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Ritu Upadhyay, Footwear News, 14 Oct. 2025
Hosted by award-winning actor, writer, and producer Aasif Mandvi, the milestone event is said to host a variety of leading filmmakers, industry professionals, and special guests for an evening celebrating excellence in documentary filmmaking.
—Marcus Jones, IndieWire, 14 Oct. 2025
The milestone follows León’s relationship with his manager and business partner, Jorge Juárez, who began overseeing his career nearly two years ago.
—Leila Cobo, Billboard, 14 Oct. 2025
Key milestones achieved The flight test commenced with the Super Heavy booster successfully igniting all 33 Raptor engines.
—Mrigakshi Dixit, Interesting Engineering, 14 Oct. 2025
See All Example Sentences for milestone
Cite this Entry
“Milestone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/milestone. Accessed 21 Oct. 2025.
Copy CitationKids Definition
milestone
noun
mile·stone
ˈmī(ə)l-ˌstōn
1
: a milepost made of stone
2
: an important point in progress or development
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