milestone

Definitions

A stone set up beside a road to mark the distance in miles to a particular place.

A significant event or stage in the life, progress, development, or history of a person or thing.

Examples

Graduating from university is a major milestone in a young person's life.

The company reached a significant milestone by launching its first international branch.

Synonyms

landmark turning point watershed moment significant event benchmark major achievement key stage

Antonyms

insignificant detail minor event triviality non-event unimportant occurrence negligible point