noun

milestone

milestone, landmark

Graduation is a major milestone in life.

Graduation is a major milestone in life.

The project reached an important milestone.

The project reached an important milestone.

a/an ((adjective)) milestone a (adj.) important event This is a significant milestone for our company.

Synonyms: landmark, achievement, turning point

From 'mile' + 'stone'. It originally referred to a stone marker placed every mile along a road.

Picture a stone on the side of a road marking your progress on a long journey. This is a 'milestone'.

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