Definition of Auto at Dictionary.com

[ aw-toh ]SHOW IPA / ˈɔ toʊ /PHONETIC RESPELLING noun, plural au·tos. adjective of or relating to automobiles: an auto salesman; auto detailing. QUIZZES How Hip Is Your Lingo? Take Our Slang Quiz! If you aren’t already skilled in slang, then this quiz can get you up to speed in no […]

[ aw-toh ]

/ ˈɔ toʊ /


noun, plural au·tos.

adjective

of or relating to automobiles: an auto salesman; auto detailing.

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Question 1 of 11

OK Boomer can be perceived as pejorative, but it is mostly considered to be _____

Origin of auto

An Americanism dating back to 1895–1900; by shortening

Definition for auto (2 of 5)

Definition for auto (3 of 5)

auto-1


a combining form meaning “self,” “same,” “spontaneous,” used in the formation of compound words: autograph, autodidact.

Origin of auto-

1

autós self

Definition for auto (4 of 5)

auto-2


a combining form representing automobile in compound words: autocade.

Definition for auto (5 of 5)

auto-3


a combining form representing automatic in compound words: autoalarm; autofeed; autofocus. Sometimes also taken as an adjective: auto enlarger; auto stop control; auto dialer.

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for auto

British Dictionary definitions for auto (1 of 2)

auto


noun plural -tos US and Canadian informal

British Dictionary definitions for auto (2 of 2)

auto-

sometimes before a vowel aut-


combining form

self; same; of or by the same oneautobiography

acting from or occurring within; self-causedautohypnosis

self-propelling; automaticautomobile

Word Origin for auto-

from Greek autos self

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

Medical definitions for auto

The American Heritage® Stedman’s Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for auto

auto-


A prefix meaning “oneself,” as in autoimmune, producing antibodies or immunity against oneself. It also means “by itself, automatic,” as in autonomic, governing by itself.

The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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