Noun: milestone 'mI(-u)l,stown
- A significant event in your life (or in a project)
"Graduating from college was a major milestone in her life"
- Stone post at side of a road to show distances
"The old milestone indicated we were 10 miles from the city";
- milepost
Derived forms: milestones
Type of: juncture, mark, marker, marking, occasion
Encyclopedia: Milestone, Virginia