adj · verb · 4 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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Received-Pronunciation:/ɒˈθɛn.tɪ.keɪt/
Southern-England:Recorded audio is listed in the source snapshot.
General-American:/ɔˈθɛn.tɪ.keɪt/
cot-caught-merger:/ɑˈθɛn.tɪ.keɪt/
CMU ARPABET:AO0 TH EH1 N T AH0 K EY2 T
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adj
Meaning 1
Synonym of authentic.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: authentic
Antonyms: none provided
2
verb
Meaning 2
To render authentic; to give authority to, by the proof, attestation, or formalities required by law, or sufficient to entitle to credit.
Definition source: English Wiktionary via Wiktextract
Usage: transitive
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
verb
Meaning 3
To prove authentic; to determine as real and true.
Definition source: English Wiktionary via Wiktextract
Usage: transitive
Examples
He didn’t manage to authenticate the portrait: it’s probably a fake.
The server could not authenticate the request.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
verb
Meaning 4
establish the authenticity of something
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Etymology tree English authentic Proto-Indo-European *-h2 Proto-Indo-European *-éh2 Proto-Indo-European *-tós Proto-Indo-European *-eh2tos Proto-Italic *-ātos Latin -ātuslbor. English -ate English authenticate From authentic + -ate (adjective-forming suffix).
Borrowed from Medieval Latin authenticō. By surface analysis, authentic + -ate (verb-forming suffix).
Across languages
Translations
45 source translations are retained for this English entry.
Bulgarian:
удостоверявам
(udostoverjavam)
— to render authentic
Bulgarian:
установявам автентичността на
(ustanovjavam avtentičnostta na)
— to render authentic
Catalan:
autenticar
— to render authentic
Dutch:
authenticeren
— to render authentic
Dutch:
authentificeren
— to render authentic
Estonian:
tõendama
— to render authentic
Finnish:
todentaa
— to render authentic
Finnish:
todistaa oikeaksi
— to render authentic
German:
authentifizieren
— to render authentic
German:
ausweisen
— to render authentic
Hungarian:
hitelesít
— to render authentic
Māori:
whakamotuhēhē
— to render authentic
Māori:
whakatūturu
— to render authentic
Māori:
motuhēhē
— to render authentic
Māori:
hāpono
— to render authentic
Persian:
کیاجیدن
— to render authentic
Portuguese:
autenticar
— to render authentic
Russian:
аутентифицировать
(autentificirovatʹ)
— to render authentic
Spanish:
autentificar
— to render authentic
Spanish:
autenticar
— to render authentic
Tagalog:
ipatotoo
— to render authentic
Bulgarian:
проверявам автентичността на
(proverjavam avtentičnostta na)
— to prove authentic
Catalan:
autenticar
— to prove authentic
Danish:
autentificere
— to prove authentic
Dutch:
authenticeren
— to prove authentic
Dutch:
authentificeren
— to prove authentic
Esperanto:
aŭtentigi
— to prove authentic
Estonian:
tõendama
— to prove authentic
Finnish:
todentaa
— to prove authentic
Finnish:
todistaa oikeaksi
— to prove authentic
French:
authentifier
— to prove authentic
German:
authentifizieren
— to prove authentic
German:
beglaubigen
— to prove authentic
Hungarian:
eredetiséget megállapít
— to prove authentic
Latin:
authenticō
— to prove authentic
Latin:
authentīzō
— to prove authentic
Māori:
whakamotuhēhē
— to prove authentic
Māori:
hāpono
— to prove authentic
Portuguese:
autenticar
— to prove authentic
Russian:
распознавать
(raspoznavatʹ)
— to prove authentic
Spanish:
autentificar
— to prove authentic
Spanish:
autenticar
— to prove authentic
Walloon:
aveuri
— to prove authentic
Walloon:
acertiner
— to prove authentic
Yiddish:
אויטענטיקירן
(oytentikirn)
— to prove authentic