noun
- an important event or stage in the development, progress, or history of something
- a stone marker placed along a road to indicate the distance to a particular place
Usage: historical
Examples
- Graduating from college was a major milestone in her life.
- The company celebrated reaching the milestone of one million customers.
- Learning to walk is an important milestone in child development.
- The peace treaty marked a significant milestone in the country’s history.
- Ancient Roman roads were marked with stone milestones every thousand paces.
- The old milestone indicated it was five miles to the nearest town.