seatbelt
nounUK /ˈsiːtbɛlt/
US /ˈsiːtbɛlt/
A seatbelt is a strong strap that keeps you safe in your seat when you ride in a car.
Please put on your seatbelt before we start driving.
OTHER MEANINGS
2. A strap worn across the shoulder and lap in an airplane seat.
The flight attendant reminded everyone to fasten their seatbelt.
3. A safety strap used in a roller coaster or amusement park ride.
He checked his seatbelt twice before the ride began.
4. A belt-like strap that holds a person securely in a child car seat.
The toddler's seatbelt clicked into place.