Word.ws English Dictionary

auth

/ɔːθ/

auth is the abbreviation of authentication.

auth is the abbreviation of authorization.

auth is the abbreviation of authoritarian.

Meaning of authentication

Noun

authentication (countable and uncountable, plural authentications)

  1. Something which validates or confirms the authenticity of something; or the process of doing so.
    • document authentication
  2. Proof of identity required by a user to log on to some network or access some resource.
    • digital authentication
  3. A hallmark or assay-mark on a piece of metalwork.

Meaning of authorization

Noun

authorization (countable and uncountable, plural authorizations)

  1. (British, English, Oxford, US, countable) An act of authorizing.
    • Our proposal thus envisages a new procedure for the authorization of experimental program1966, Education at Berkeley, page 116
  2. (British, English, Oxford, US, uncountable) The state of being authorized to do something or to be somewhere; formally granted permission.
    • I've got authorization. Call the office and you'll see.
  3. (British, English, Oxford, US, countable) A document giving formal sanction, permission or warrant.
    • Can I see your authorization?
  4. (British, English, Oxford, US) Permission, possibly limited, to spend funds for a specific budgetary purpose.
    • We've had the authorization for years, but we've never gotten an appropriation.

Verb

auth (third-person singular simple present auths, present participle authing, simple past and past participle authed)

  1. (informal) To authenticate.
    • You can't post messages on the site unless you're authed.

Proper noun capitalized: Auth

Auth (plural Auths)

  1. A surname.

Forms of auth

Noun
pluralauths
Verb
third-person singular presentauths
present participleauthing
past participleauthed
pastauthed
Proper noun
pluralAuths

Words formed from auth

Questions about auth

What does auth mean?
Auth means to authenticate.
What is auth the abbreviation of?
Auth is the abbreviation of authentication.
What part of speech is auth?
Auth can be a verb or a proper noun.
How do you pronounce auth?
Auth is pronounced /ɔːθ/.
What is the past tense of auth?
The past tense of auth is authed.

Words near auth in the dictionary

  1. auteuristic
  2. auteurists
  3. auteurs
  4. auteurship
  5. autexousious
  6. auth
  7. auth.
  8. Auth. Ver.
  9. authalic
  10. Authbert
  11. authcom

Source and license

Adapted from Wiktionary: auth (page history and authors); Auth (page history and authors); authentication (page history and authors); authorization (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-auth.wav.

Cite this entry: “auth.” Word.ws, https://word.ws/auth. Based on Wiktionary, CC BY-SA 4.0.