Autoとは 意味・読み方・使い方

語源 1

From Ancient Greek αὐτός (autós, “self”), metanalyzed from auto- in words such as automatic, autopilot, and automobile.

形容詞

auto (not comparable)

1. (automotive) Clipping of automatic (of a gearbox/transmission).

   It's an auto sedan which we picked up from a wholesaler locally.

   • 2023 December 1, Evelynn Kersting, “GAMES AND TIME”, in University of Wisconsin-Milwaukee‎, page 250‎, archived from the original on 6 June 2025:

     For the first eight years of the Tetris Championship Series, the eventual victor used a technique known as delayed auto shift, or "DAS."

名詞

auto (countable and uncountable, plural autos)

1. (now chiefly attributive) Clipping of automobile.

   My brother is an auto mechanic. He can get me a discount on auto parts.

   In 1909, his grandfather was the first farmer in the county to buy an auto.

   • 2024 December 17, Chris Isidore, “The retreat from the world’s largest auto market has begun”, in CNN‎:

     “There were golden years for GM in China, but those are over, and they’ll never have a comeback story,” said Michael Dunne, an auto industry consultant who has been involved in Western automakers’ efforts in China since the 1990s, including GM’s entry into the market.

   • 2025 March 5, John Towfighi, “US stocks rally on Trump’s tariff exemption for autos”, in CNN‎:

     “We spoke with the Big Three auto dealers. We are going to give a one-month exemption on any autos coming through USMCA,” President Donald Trump said in a statement read by White House Press Secretary Karoline Leavitt at a press briefing Wednesday. Those dealers included Stellantis, Ford and General Motors.

2. (uncountable) A setting for automatic operation.

   Synonym: automatic

   Antonym: manual

   Put it on auto.

3. (automotive) An automatic gearbox/transmission.

   A body-coloured centre pillar signalled the arrival of an electronic four-speed auto, slight suspension revisions and minor trim changes.

4. (automotive) A car with an automatic gearbox/transmission.

   It wasn't too bad but we did hire an auto (couldn't imagine changing gears with my right hand).

同意語

• (automobile, attributively): automobile, car, motorcar; motor

派生語

動詞

auto (third-person singular simple present autos, present participle autoing, simple past and past participle autoed)

1. (intransitive, dated) To travel by automobile.
   • 1907, Automotive Industries, volume 16, page 711:

     The food was excellent and well served, and it recalled the Norman cities he had autoed to.

   • 1924, The Smith Alumnae Quarterly, volumes 16-17, page 318:

     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.

語源 2

Clipping of autorickshaw, from Hindi ऑटो रिक्शा (ŏṭo rikśā).

名詞

auto (plural autos)

1. (India) An autorickshaw.

   Users are often unable to note down the number of the taxi or the auto as the driver will just zoom past.

参考

• tuk-tuk

アナグラム

• aout, outa

形容詞

autō

1. dative/ablative masculine/neuter singular of autus

発音

• (Received Pronunciation) IPA: /ˈɔː.tə-/
• (General American) IPA: /ˈɔ.tə-/, [ˈɔ.ɾə-], /ˈɔ.toʊ-/, [ˈɔ.ɾoʊ-]
  • (cot–caught merger) IPA: /ˈɑ.tə-/, [ˈɑ.ɾə-], /ˈɑ.toʊ-/, [ˈɑ.ɾoʊ-]
• ハイフネーション: au‧to-

語源 1

Learned borrowing from Ancient Greek αὐτο- (auto-, “self-”).

接頭辞

auto-

1. Reflexive, regarding or to oneself.

   ‎auto- + ‎biography → ‎autobiography

   ‎auto- + ‎erotic → ‎autoerotic

同意語

• self-, ipsi-

反意語

• allo-, hetero- (different)
• syn- (concomitant)
• inter- (reciprocal)
• co-, con-/com-/col-/cor-, syn-/sym-/syl-, inter- (mutual)

派生語

• autoclave
• automaton
• autosome

語源 2

Clipping of automatic.

接頭辞

auto-

1. Automatic.

   ‎auto- + ‎focus → ‎autofocus

   ‎auto- + ‎loader → ‎autoloader

   ‎auto- + ‎walk → ‎autowalk

派生語

語源 3

Clipping of automobile (“self-propelled”), itself equivalent to auto- (“self”) + mobile. In later formations influenced by auto (“automobile”).

接頭辞

auto-

1. Self-propelled.

   ‎auto- + ‎cab → ‎autocab

   ‎auto- + ‎car → ‎autocar

2. Relating to cars or the driving of cars.

   ‎auto- + ‎cross → ‎autocross

   ‎auto- + ‎-phile → ‎autophile

派生語

派生語

参照

アナグラム

• aout, outa