Definition of "auto"

auto¹

/ˈɔːtəʊ/

adjective
not comparable
1. (automotive) Clipping of automatic. (of a gearbox/transmission)
noun
countable and uncountable, plural autos
1. (chiefly attributive) An automobile.
2. (uncountable) A setting for automatic operation.
3. (automotive) An automatic gearbox/transmission.
4. (automotive) A car with an automatic gearbox/transmission.
verb
third-person singular simple present autos, present participle autoing, simple past and past participle autoed
1. (intransitive, dated) To travel by automobile.
  Quotations
  The food was excellent and well served, and it recalled the Norman cities he had autoed to.
  1907, Automotive Industries, volume 16, page 711
  Christmas Day we decided to spend in snow, in order to feel more at home, and so we autoed up 5000 ft. to Peira Cava and reveled in the winter sports, autoing back to the roses and “summer time” at nightfall.
  1924, The Smith Alumnae Quarterly, volumes 16-17, page 318

/ˈɔːtəʊ/