Auto definition

ôtō
Self; same.

Autogamy.

prefix
24
17
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.
10
4
adjective
14
9
Automatic.

Autopilot.

prefix
7
2
An automobile.
noun
6
4
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By oneself or itself.

Automobile.

affix
4
5
Automatic.

Autofocus.

affix
14
16
Of or for oneself; self.

Autobiography.

affix
4
6
(law) Abbreviation of automotive.
noun
1
3
(law) Abbreviation of automobile.
noun
0
2
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To go by automobile.
verb
5
9
An unincorporated community in West Virginia.
pronoun
0
4
To go by or ride in an automobile.
verb
11
16
An automobile.
noun
11
16
The definition of auto is an abbreviation for automobile which is a machine with an engine, four wheels, and room for passengers that is used to transport people on land.

A car is an example of an auto.

noun
1
6
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Other Word Forms

Noun

Singular:
auto
Plural:
autos

Origin of auto

  • < Gr autos, self

    From Webster's New World College Dictionary, 5th Edition

  • Greek from autos self

    From American Heritage Dictionary of the English Language, 5th Edition

  • Short for automobile

    From American Heritage Dictionary of the English Language, 5th Edition