trampoline trampoline /ˌtræmpəˈliːn/

noun

1. Gymnastic apparatus consisting of a strong canvas sheet attached with springs to a metal frame; used for tumbling  ( trampoline )
   gymnastic apparatus consisting of a strong canvas sheet attached with springs to a metal frame; used for tumbling
    The kids spent hours jumping on the trampoline in the backyard.
   The kids spent hours jumping on the trampoline in the backyard.