Word
authenticate
Phoneticsau·then·ti·cate, stress on the second syllable
US/ɔˈθɛntəˌkeɪt/
UK/ɔːθˈɛntɪkˌeɪt/
Definition
v. to prove that something is real and not a fake. You use this when checking if a document, a painting, or a person is who or what they say they are.
v. to verify the authenticity of an object, document, or person. Transitive — requires a direct object to be verified.
Examples
“The expert will authenticate the painting to see if it is real.”
“Before the bank processes the large withdrawal, they must authenticate the signature on the check against the customer's records.”
“Advanced forensic techniques allow investigators to authenticate digital evidence, ensuring that the data has not been altered or corrupted since its initial collection at the crime scene.”
Examples
simple
“The expert will authenticate the painting to see if it is real.”
contextual
“Before the bank processes the large withdrawal, they must authenticate the signature on the check against the customer's records.”
complex
“Advanced forensic techniques allow investigators to authenticate digital evidence, ensuring that the data has not been altered or corrupted since its initial collection at the crime scene.”
Real-World Examples
“Second, it’s important for AI agents to be designed to identify and authenticate themselves to third parties.” “An expert who authenticates designer goods said she was aware of issues regarding second-hand luxury items sold online.” Etymology
From Medieval Latin authenticō. By surface analysis, authentic + -ate (verb-forming suffix).
From authentic + -ate (adjective-forming suffix)
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Word family
VERB
NOUN
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
- Frequency
- Occasional
- Level
- B2 · Upper Intermediate
- Updated
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