Springboard (noun)

1. A diving board that is used for diving into a swimming pool or other body of water.
2. A board, usually made of wood or metal, that is used as a platform for jumping or leaping in gymnastics or diving.
3. Something that helps to launch or propel forward, as in a springboard for a career or a springboard for an idea.

Origin:

From the word "spring" which means to jump or leap, and "board" which refers to a flat surface, it refers to a device that helps to jump or leap.

Examples:

1. The diver used the springboard to perform a flip.
2. The gymnast used the springboard to launch into her routine.
3. The springboard helped the swimmer to jump into the pool.
4. The springboard was an important tool for the gymnasts to practice their routines.
5. The successful project was a springboard for her career.