classified
B2Formal (in the 'secret' sense); Neutral (in the 'categorized' sense); Neutral/Informal (as a noun for advertisements).
Definition
Meaning
Arranged in categories or officially designated as secret/restricted.
As an adjective: sorted into classes/groups or officially restricted for security reasons. As a noun: a short advertisement in a newspaper, typically arranged under categories like 'For Sale' or 'Jobs' (plural form).
Linguistics
Semantic Notes
The word has a primary dichotomy: 1) the state of being organized, and 2) the state of being concealed. The 'secret' sense is dominant in news/media contexts.
Dialectal Variation
British vs American Usage
Differences
As a noun for advertisements, 'classifieds' is common in both. No major usage differences, though the spelling remains consistent.
Connotations
Identical connotations for the 'secret' sense. The 'categorized' sense is slightly more formal in both varieties.
Frequency
Comparatively frequent in both, with higher frequency in the US in governmental/military contexts due to scale of institutions.
Vocabulary
Collocations
Grammar
Valency Patterns
classified as + noun/adjective (The document is classified as 'Top Secret'.)classified + noun (classified information)be + classified + preposition (The files were classified by date.)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “classified information (set phrase)”
- “the classifieds (section of newspaper)”
Usage
Context Usage
Business
Refers to sensitive company data or to job/asset listings in the 'classifieds'.
Academic
Used for systems of categorization, e.g., 'classified according to species'.
Everyday
Most commonly encountered as 'classified ads' for buying/selling or referring to government secrets in news.
Technical
In government/military/IT security, denotes official levels of data sensitivity (Confidential, Secret, Top Secret).
Examples
By Part of Speech
verb
British English
- The archivist classified the documents by reign.
- The report hasn't been classified yet.
American English
- She classified the expenses under 'travel'.
- The military classifies that technology immediately.
adverb
British English
- (Rarely used as a standalone adverb) The data was classified organised.
American English
- (Rarely used as a standalone adverb) The system sorts entries classified.
adjective
British English
- He viewed the classified files in a secure room.
- Look in the classified section for used cars.
American English
- The classified briefing was for senators only.
- She placed a classified ad for her apartment.
Examples
By CEFR Level
- The books are classified by colour.
- She reads the classifieds to find a job.
- This information is classified, so I can't discuss it.
- He sold his bike through a classified advertisement.
- Documents were classified according to their level of sensitivity.
- The journalist was accused of leaking classified material.
- The newly declassified files reveal that the meeting had been classified 'Eyes Only' for decades.
- A sophisticated algorithm classified the texts into distinct stylistic groups.
Learning
Memory Aids
Mnemonic
Think of a CLASS being divided (CLASS-I-FIED) into groups, or a class of information that is filed away secretly.
Conceptual Metaphor
SECRECY IS BURIAL / CONCEALMENT; ORGANIZATION IS SORTING INTO CONTAINERS.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'классифицированный' (which is correct for 'categorized') when the intended meaning is 'secret' – that requires 'секретный', 'засекреченный'.
- The noun 'classifieds' (объявления) is unrelated to secrecy.
Common Mistakes
- Using 'classified' to mean 'well-known' (opposite error).
- Saying 'a classified' for a single advertisement (should be 'a classified ad').
Practice
Quiz
In which context does 'classified' NOT imply secrecy?
FAQ
Frequently Asked Questions
No, it has two main meanings: 1) sorted into categories, and 2) officially secret. The 'secret' meaning is now more common in news, but both are standard.
Yes, but almost exclusively in the plural form 'the classifieds', referring to the section of advertisements in a publication.
In formal contexts, 'classified' is an official government/military security level (e.g., Confidential, Secret, Top Secret). 'Confidential' can be more general, meaning intended to be private. All classified information is confidential, but not all confidential information is officially 'classified'.
Use the verb 'declassify'. The document becomes 'declassified' (an adjective).