auto-

¹

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

   autograph, autodidact.

auto-

²

1. a combining form representing automobile in compound words.

   autocade.

auto-

³

1. a combining form representing automatic in compound words: autoalarm; autofeed; autofocus . Sometimes also taken as an adjective.

   auto enlarger; auto stop control; auto dialer.

auto

⁴

[aw-toh]

noun

plural

autos 

1. automobile.

adjective

1. of or relating to automobiles.

   an auto salesman; auto detailing.

auto.

⁵

abbreviation

1. automatic.

2. automobile.

3. automotive.

auto

¹

/ ˈɔːtəʊ /

noun

1. 1. short for automobile

   2. ( as modifier )

      auto parts

2. informal,  short for autorickshaw

auto-

²

combining form

1. self; same; of or by the same one

   autobiography

2. acting from or occurring within; self-caused

   autohypnosis

3. self-propelling; automatic

   automobile

Word History and Origins

Origin of auto-¹

< Greek, combining form of autós self

Origin of auto-²

auto

Origin of auto-³

An Americanism dating back to 1895–1900; by shortening

Word History and Origins

Origin of auto-¹

from Greek autos self

Example Sentences

Hexavalent chromium, commonly known as chrome, is best known for providing shiny, rust-resistant coating to auto parts, aviation components and tools.

Read more on Los Angeles Times

Starting this week, Ford isn’t producing its lucrative three-row SUVs, the Expedition and Lincoln Navigator, at its Kentucky Truck Plant because of the difficulties with aluminum supply, an official from the United Auto Workers told members at the plant last week.

Read more on The Wall Street Journal

The plant supplies about 40% of the aluminum sheet used by the auto industry in the U.S., according to industry analysts.

Read more on The Wall Street Journal

The implementation of the tariffs was delayed until March, and until April for some auto producers.

Read more on The Wall Street Journal

Auto deleveraging is a risk-management mechanism used by some crypto-derivatives exchanges, especially those offering perpetual futures.

Read more on MarketWatch

Related Words

• car 
• passenger car www.thesaurus.com
• vehicle