noun🔗ShareA stone milepost (or by extension in other materials), one of a series of numbered markers placed along a road at regular intervals, typically at the side of the road or in a median."The old Roman road still had its milestones intact, each marking another mile traveled. "markplacehistoryChat with AIVocabulary GamePractice Reading
noun🔗ShareAn important event in a person's life or career, in the history of a nation, in the life of some project, etc."Learning to read and write were important milestones in her early education. "achievementeventhistorytimestageChat with AIVocabulary GamePractice Reading
