seatbelt
seet belt
- n a safety belt used in a car or plane to hold you in your seat in case of an accident
 
- It's kind of like a seatbelt on a plane.
 - Inside the plane, as I secured my seatbelt low and tight, I pondered my good fortune.
 - Pinned in his own back-row seat, Pan was cut loose from his seatbelt by a flight attendant.