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- milestone 1
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
The developer, Dominion Energy, announced the milestone.
—
ABC News, 23 Mar. 2026
Last week Devil-Dog Dungarees launched its first ever women’s jeans, marking a major milestone in the brand’s history.
—Angela Velasquez, Sourcing Journal, 23 Mar. 2026
Where last year’s residency was anchored to a singular milestone, this new run unfolds as a panoramic retrospective.
—Preezy Brown, VIBE.com, 23 Mar. 2026
That’s really a milestone for us.
—Eric Prisbell, Dallas Morning News, 23 Mar. 2026
See All Example Sentences for milestone
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ABC News, 23 Mar. 2026
Last week Devil-Dog Dungarees launched its first ever women’s jeans, marking a major milestone in the brand’s history.
—Angela Velasquez, Sourcing Journal, 23 Mar. 2026
Where last year’s residency was anchored to a singular milestone, this new run unfolds as a panoramic retrospective.
—Preezy Brown, VIBE.com, 23 Mar. 2026
That’s really a milestone for us.
—Eric Prisbell, Dallas Morning News, 23 Mar. 2026
See All Example Sentences for milestone
Cite this Entry
“Milestone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/milestone. Accessed 24 Mar. 2026.
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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