English Reference

Word

filth

US/ˈfɪɫθ/

UK/fˈɪlθ/

Definitions

01extreme dirt

B2 · Upper Intermediate Uncountable noun

n. very thick, disgusting dirt or waste that makes a place or person very messy.

n. disgusting or foul matter; extreme physical uncleanness that soils or defiles a surface or environment.

“The abandoned house was covered in years of dust and filth.”

“After the flood waters receded, the basement was left coated in a thick layer of toxic filth and river silt.”

Synonyms

02offensive material

C1 · Advanced Uncountable noun Informal

n. words, pictures, or ideas that people think are very rude, disgusting, or morally wrong.

n. material, such as pornography or extreme profanity, considered morally corrupting or deeply offensive.

“Some parents complained that the new movie was nothing but filth.”

“The tabloid was accused of peddling filth under the guise of investigative journalism to boost its declining circulation.”

03the police

C2 · Proficiency Plural noun British English · Slang · Vulgar

n. a very rude and insulting name for the police.

n. a highly derogatory collective slang term for the police or law enforcement officers.

“The teenagers ran away as soon as they saw the filth arriving.”

“In the gritty crime novel, the protagonist refers to the local precinct detectives exclusively as the filth.”

Synonyms

Usage

Uncountable; frequently used with 'covered in' or 'layers of'.

Etymology

From Middle English filth, from Old English fȳlþu, from Proto-West Germanic *fūliþu, equivalent to foul + -th (abstract nominal suffix).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

NOUN

filth(B2)

ADJECTIVE

Idioms

Domain

Agriculture

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Frequent
Level
B2 · Upper Intermediate
Updated

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English Reference