A springboard is a flexible board that you jump on to jump higher in the air, often used in diving or gymnastics.
A springboard can make people think of fun, sports, and being high in the air.
Examples:
The diver jumped off the springboard into the pool.
I want to try jumping on the springboard.
The springboard is bouncy.
The springboard is like a trampoline, but not as bouncy.
The springboard can make you jump really high!
The gymnast used the springboard to do a flip.