Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
springboard [ˈsprɪŋbɔːd] n (SPORT) трампли́н; (fig)
to be the springboard for служи́ть (послужи́ть (impf)) трампли́ном для +gen
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: