classifier

noun

clas·​si·​fi·​er ˈkla-sə-ˌfī(-ə)r 

1

: one that classifies

specifically : a machine for sorting out the constituents of a substance (such as ore)

2

: a word or morpheme used with numerals or with nouns designating countable or measurable objects

Examples of classifier in a Sentence

Recent Examples on the Web

Most parents will never download an AI classifier or visit a GitHub repository. — Kurt Knutsson, FOXNews.com, 21 Aug. 2026

Researchers had also disabled some of the cyber classifiers that AI model providers built into the models to prevent misuse. — Jeremy Hsu, ArsTechnica, 5 Aug. 2026

What The Guardrail Argument Does Not Settle Guardrails is an umbrella term covering distinct layers, including model refusal behavior, request classifiers, account permissions and infrastructure containment. — Janakiram Msv, Forbes.com, 27 July 2026

This means users can now reroute requests flagged by Claude's safety classifiers on Opus 5 or Fable 5 to another model, rather than being blocked outright. — Will McCurdy, PC Magazine, 25 July 2026

Word History

First Known Use

1799, in the meaning defined at sense 1

Rhymes for classifier

• acquire
• attire
• bonfire
• campfire
• ceasefire
• conspire
• desire
• enquire
• entire
• greenbrier
• gunfire
• homebuyer