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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
Late last year, Factor celebrated a milestone of one million meals donated to the Aurora community during a similar ceremony.
—
R. Christian Smith, Chicago Tribune, 5 June 2025
Kansas City Chiefs rookie left tackle Josh Simmons continues to exceed expectations in his return from a knee injury while also hitting a milestone Wednesday.
—Jesse Newell, Kansas City Star, 5 June 2025
To celebrate the milestone, Florida Citrus Sports plans a year-long celebration culminating in the Cheez-It Citrus Bowl, scheduled to take place on Wednesday, Dec. 31 at 3 p.m., airing on ABC.
—Matt Murschel, The Orlando Sentinel, 5 June 2025
Immigration and Customs Enforcement (ICE) hit a record-breaking milestone this week, arresting more than 2,200 undocumented migrants in a single day.
—Billal Rahman, MSNBC Newsweek, 5 June 2025
See All Example Sentences for milestone
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R. Christian Smith, Chicago Tribune, 5 June 2025
Kansas City Chiefs rookie left tackle Josh Simmons continues to exceed expectations in his return from a knee injury while also hitting a milestone Wednesday.
—Jesse Newell, Kansas City Star, 5 June 2025
To celebrate the milestone, Florida Citrus Sports plans a year-long celebration culminating in the Cheez-It Citrus Bowl, scheduled to take place on Wednesday, Dec. 31 at 3 p.m., airing on ABC.
—Matt Murschel, The Orlando Sentinel, 5 June 2025
Immigration and Customs Enforcement (ICE) hit a record-breaking milestone this week, arresting more than 2,200 undocumented migrants in a single day.
—Billal Rahman, MSNBC Newsweek, 5 June 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 10 Jun. 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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