authentication
/ɔːˌθɛntɪˈkeɪʃn̩/noun
authentication is spelled A-U-T-H-E-N-T-I-C-A-T-I-O-N: 14 letters and 5 syllables. It appears 2.2 times per million words in written English, the 18,297th most frequent word form (wordfreq, 2021 data). As a noun, authentication means “Something which validates or confirms the authenticity of something; or the process of doing so” (English Wiktionary, September 2026). The plural of authentication is authentications.
How many letters and syllables are in authentication?
| Letters | 14: A-U-T-H-E-N-T-I-C-A-T-I-O-N |
|---|---|
| Syllables | 5 (from its American pronunciation) |
| In writing | 2.2 times per million words; the 18,297th most frequent word form |
| Wrong spellings searched | none measured in search |
| Rhymes with |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); rhymes and same-letter words are computed by PlainSpell from its own word list.
How common is authentication?
Authentication appears 2.2 times per million words in written English, the 18,297th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce authentication?
- UK /ɔːˌθɛntɪˈkeɪʃn̩/
- /ɑˌθɛntɪˈkeɪʃn̩/
- /ɔˌθɛntɪˈkeɪʃn̩/
Authentication has 5 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-authentication.wav, Wikimedia Commons (author and licence on each file's page).
What rhymes with authentication?
The 12 most written words on PlainSpell end in the same sounds as authentication from its last stressed vowel (/eɪʃn/, British pronunciation):
- migration
- remediation
- implantation
- dislocation
- congratulation
- transmutation
- legitimation
- prorogation
- financialization
- intercommunication
- profanation
- axiomatization
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of authentication
- authentications plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does authentication mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 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.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you abbreviate authentication?
Wiktionary records one abbreviation of authentication: auth.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Authentication in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| French | authentification , certification |
| German | Authentifikation |
| Portuguese | autenticação |
| Spanish | autentificación, autenticación |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does authentication come from?
From authenticate + -ation.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).