(1):
(v. i.) To bound again or repeatedly, as a horse.
(2):
(n.) The act of rebounding; resilience.
(3):
(v. t.) To send back; to reverberate.
(4):
(v. i.) To give back an echo.
(5):
(v. i.) To spring back; to start back; to be sent back or reverberated by elastic force on collision with another body; as, a rebounding echo.