(n) a beginning from which an enterprise is launched, Syn. jumping-off point, point of departure, Example:he uses other people's ideas as a springboard for his own; reality provides the jumping-off point for his illusions; the point of departure of international comparison cannot be an institution but must be the function it carries out
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
n. An elastic board, secured at the ends, or at one end, often by elastic supports, used in performing feats of agility or in exercising. [ 1913 Webster ]