Dictionary.com
definitions
  • synonyms

seat belt

or seat·belt

See more synonyms for seat belt on Thesaurus.com
noun
  1. a belt or strap in an automobile, airplane, etc., fastened around or sometimes diagonally across the midsection to keep the person safely secured, as during a sudden stop.
Show More
Compare lap belt.

Origin of seat belt

First recorded in 1945–50
Also called safety belt.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for seat belt

Contemporary Examples

Historical Examples

  • She checked to make sure he had fastened his seat-belt properly, and then started the engine.

    Baartock

    Lewis Roth


British Dictionary definitions for seat belt

seat belt

noun
  1. Also called: safety belt a belt or strap worn in a vehicle to restrain forward motion in the event of a collision
  2. a similar belt or strap worn in an aircraft at takeoff and landing and in rough weather
Show More
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012