n. 1 a springy board giving impetus in leaping, diving, etc. 2 a source of impetus in any activity. 3 US & Austral. a platform inserted in the side of a tree, on which a lumberjack stands to chop at some height from the ground.
SPRINGBOARD
Meaning of SPRINGBOARD in English
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012