Illustration of milestone
- 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
Career milestones usually put the person in the spotlight, but behind many such achievements exists a powerful, silent dedication that people achieve through their persistent efforts and their deliberate choice to follow their life goals.
—
Connie Etemadi, USA Today, 11 May 2026
Wade Boggs still has, and may always have, the biggest personal milestone hit by a player in a Rays uniform, capping his Cooperstown-worthy career with his 3,000th hit — a home run, at that – in an August 1999 game at Tropicana Field.
—Marc Topkin, The Orlando Sentinel, 11 May 2026
Vaccaro and her husband told the outlet that their son is in good shape so far and is meeting expected NICU milestones.
—Rachel Raposas, PEOPLE, 11 May 2026
Instead of thinking in semesters or milestones, life became moment-to-moment.
—Emily Cegielski, Flow Space, 11 May 2026
See All Example Sentences for milestone
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.
Connie Etemadi, USA Today, 11 May 2026
Wade Boggs still has, and may always have, the biggest personal milestone hit by a player in a Rays uniform, capping his Cooperstown-worthy career with his 3,000th hit — a home run, at that – in an August 1999 game at Tropicana Field.
—Marc Topkin, The Orlando Sentinel, 11 May 2026
Vaccaro and her husband told the outlet that their son is in good shape so far and is meeting expected NICU milestones.
—Rachel Raposas, PEOPLE, 11 May 2026
Instead of thinking in semesters or milestones, life became moment-to-moment.
—Emily Cegielski, Flow Space, 11 May 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 12 May. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
