Noun: air cushion
- The trapped air that supports a hovercraft a short distance above the water or ground
"The hovercraft glided smoothly on its air cushion"
- A mechanical device using confined air to absorb the shock of motion
"The truck's air cushions provided a smoother ride over rough terrain";
- air spring
- A cushion usually made of rubber or plastic that can be inflated
"They brought air cushions to sit on at the outdoor concert";
- inflatable cushion
Derived forms: air cushions
Type of: compressed air, cushion, damper, shock, shock absorber