Steppingstone (noun)

A means of making progress or achieving a goal; a step or stage in a process of advancement.

Origin:

The word "steppingstone" is derived from the phrase "stepping stone", which refers to a flat stone used to cross a body of water. the term has been in use since the 16th century, referring to something that helps one move forward or progress.

Examples:

1. Getting a degree from a reputable university is a stepping stone to a successful career.
2. This job may not be my ultimate goal, but it is a stepping stone to something better.
3. He considers his current job as a stepping stone to a higher position.
4. My intern experience turned out to be an important steppingstone in my career.
5. This project is a steppingstone to the company's future expansion plans.