Launch pad and Trampoline

Launch pad noun - A platform from which rockets or space craft are launched.

Trampoline and launch pad are semantically related in springboard topic. In some cases you can use "Trampoline" instead a noun phrase "Launch pad", when it comes to topics like stepping stone.

Trampoline noun - Gymnastic apparatus consisting of a strong canvas sheet attached with springs to a metal frame; used for tumbling.

Launch pad and trampoline are semantically related in springboard topic. You can use "Launch pad" instead a noun "Trampoline", if it concerns topics such as stepping stone.