Definition of auto in English:



North American
  • [usually as modifier] An automobile.

    ‘the auto industry’
    • ‘Plan your needs with financial planner and then apply for the auto loan you need.’
    • ‘Finding the best auto parts actually depends on you, so make the right choice now!’
    • ‘It is not unreasonable to expect the slowdown in car sales to affect auto parts companies too.’
    • ‘They brought a gust of cold air with them and the smell of auto exhaust.’
    • ‘Making use of the internet for getting the best suited auto insurance is not a demanding task.’
    • ‘The riders weave through the pedestrians and much of the center has almost no auto traffic.’
    • ‘Did you ever wonder why the North American auto industry is concentrated where it is?’
    • ‘Another reason to take a course of this nature is to reduce auto insurance rates.’
    motor car, automobile, motor, machine
    View synonyms


Late 19th century: abbreviation of automobile.