authenticator

/ə-ˈthen-ti-ˌkā-tər ȯ-/ (ame, mw)

authenticator — noun

1. a person, device, or system that checks whether something is genuine, real, or v

1.名詞B2
釋義

a person, device, or system that checks whether something is genuine, real, or valid — for example, an art specialist who examines a painting's origin, or a security app that confirms your identity before letting you log in.

例句

After finding the signature, the museum hired an independent authenticator to examine the painting.

independent authenticator

A fingerprint authenticator is now required before the app grants access to private data.

fingerprint authenticator

同義詞
  • validator

    more general; used for data, forms, and transactions; less associated with artworks

  • verifier

    overlapping meaning, but 'verifier' is more common in computing and less formal

  • certifier

    implies a formal, often official approval; used for documents and qualifications

反義詞
  • forger

    a person who creates fake items, which is the opposite of what an authenticator detects

文法句型

authenticator + of + [document/art/signature/identity]

an/the authenticator + verb

[field] + authenticator

用法筆記

Often paired with a noun describing the method of verification — for example, fingerprint authenticator, voice authenticator, two-factor authenticator. When referring to a person, the context is usually the art or document world.

常見錯誤

❌He is an authenticator of the story.
✅He is an authenticator of old manuscripts.
💡'authenticator' is used with concrete, verifiable objects (documents, art, signatures), not abstract ideas like stories.
❌The authenticator checked my passport at the door.
✅The security guard checked my passport at the door.
💡'authenticator' refers to a specialist or a system, not a general security person.