milestone

A milestone is a significant event or achievement that marks an important stage in your life. For example, graduating from college could be a milestone.

The word "milestone" is often used to describe major accomplishments and turning points. When people talk about milestones, they're usually referring to achievements like getting married, having children, or reaching a big career goal. Sometimes, milestones are also important dates in history, such as the signing of a treaty or the landing on the moon. But in everyday conversation, milestone is more often used to highlight personal achievements and celebrations. Think about it this way: when you look back at your life, what events stand out as especially significant? Those are probably your milestones.