classified

1 of 2

adjective

clas·​si·​fied ˈkla-sə-ˌfīd 

1

: divided into classes or placed in a class

classified ads

2

: withheld from general circulation for reasons of national security

classified information

classified

2 of 2

noun

: an advertisement grouped with others according to subject

—usually used in plural

Examples of classified in a Sentence

Adjective

The part of the report that includes classified information was removed before the report was made public.

Recent Examples on the Web

Adjective

But some of those feelings are shared by many within the building, after OpenAI struck a deal with the Pentagon on Friday to use its AI models in classified systems. —Hadas Gold, CNN Money, 4 Mar. 2026

Last Friday, competitor OpenAI struck a deal with the Pentagon to take Anthropic’s place, offering AI services for classified uses. —Reed Albergotti, semafor.com, 4 Mar. 2026

Noun

From the beginning, CoStar's plan to build a dominant online classifieds business in the U.S. RRE industry was deeply flawed. —Kenneth Squire, CNBC, 31 Jan. 2026

Despite that, classifieds rival Dubizzle pulled its IPO last year after its prospectus revealed four years of losses. —Mohammed Sergie, semafor.com, 30 Jan. 2026

Word History

First Known Use

Adjective

1789, in the meaning defined at sense 1

Noun

1909, in the meaning defined above

Rhymes for classified

• actinide
• aldehyde
• alkoxide
• alongside
• amplified
• arsenide
• beautified
• biocide
• butoxide
• calcified
• ceramide
• certified

Kids Definition

classified

1 of 2 adjective

clas·​si·​fied ˈklas-ə-ˌfīd 

1

: divided into classes or placed in a class

classified ads

2

: withheld from the knowledge of the general public for reasons of national security

classified information

classified

2 of 2 noun

: an advertisement grouped with others of the same kind

—usually used in plural