Jumping-off place and Starting line

Jumping-off place noun - A place from which an enterprise or expedition is launched.

Starting line and jumping-off place are semantically related. in starting point topic. In some cases you can use "Starting line" instead a noun phrase "Jumping-off place".

Starting line noun - A line indicating the location of the start of a race or a game.

Jumping-off place and starting line are semantically related. Sometimes you can replace phrase "Jumping-off place" with "Starting line", this phrases are similar.