Classified

//ˈklæsəfaɪd// adj, noun, verb, slang

adj, noun, verb, slang ·Common ·High school level

Definitions

Noun
  1. 1
    A classified advertisement in a newspaper or magazine. informal

    "He ran a classified for the tools he wanted to sell."

  2. 2
    a short ad in a newspaper or magazine (usually in small print) and appearing along with other ads of the same type wordnet
Verb
  1. 1
    simple past and past participle of classify form-of, participle, past

    "Make sure all the field observations are classified by species."

Adjective
  1. 1
    Sorted into classes or categories.
  2. 2
    Formally assigned by a government to one of several levels of sensitivity, usually (in English) top secret, secret, confidential, and, in some countries, restricted; thereby making disclosure to unauthorized persons illegal.

    "We do not discuss specific interrogation techniques because they are classified information."

  3. 3
    Not meant to be disclosed by a person or organization.

    "I won't say who I'm going to the prom with; that's classified."

Adjective
  1. 1
    arranged into classes wordnet
  2. 2
    official classification of information or documents; withheld from general circulation wordnet

Synonyms

All synonyms
top secretgroupedrestrictedsecretconfidentialeyes only

Example

More examples

"These can be classified roughly into three types."

Etymology

Etymology 1

From classify + -ed.

Etymology 2

From classified advertisement, by shortening.

Related phrases

classified adclassified advertisementclassified advertisementtop secret

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.