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milestone
/ˈmaɪlstoʊn/
significant event
Graduating from college was a major milestone in her life.
This sentence shows 'milestone' as a key achievement marking progress.
formal
An important event or stage in someone's life or in the development of something.
The company celebrated its 25th anniversary as a milestone achievement.
This shows a business context where reaching 25 years is a significant marker.
The project is on track to meet all its milestones by the end of the year.
Here, 'milestone' refers to scheduled goals in a project timeline.
Often used in project management, personal development, and historical contexts.
Engineering
historical
A stone marker set up on a road to indicate the distance in miles to a particular place.
The old Roman road was lined with milestones indicating distances between cities.
This shows the original literal meaning of physical markers.
This literal meaning is now rare and mostly historical.
Collocations
reach a milestoneto achieve an important goalhit a milestoneto reach an important stage or eventmajor milestonea very significant eventkey milestonean essential stage in progress
Antonyms
Pro Tip
Avoid overusing
While 'milestone' is useful, don't use it for every small achievement. Reserve it for truly significant events or stages.
Gold Rule
Context matters
Use 'milestone' when referring to progress in a journey (literal or metaphorical), not for random events.
Word Origin
From 'mile' (a unit of distance) + 'stone' (a marker), dating back to the 18th century when physical stones were placed along roads to indicate distances in miles.
Usage Notes
Commonly used in both personal and professional contexts to describe progress or achievements. Avoid using it for trivial events—it implies significance.
Word Breakdown
mile
a unit of distance (1 mile ≈ 1.6 km)
rootstone
a marker or rock
rootEnglish Dictionary