English Reference

Word

plumbing

Phoneticsplumb·ing, stress on the first syllable

US/ˈpɫəmɪŋ/

UK/plˈʌmɪŋ/

Definitions

01pipes and fixtures

B1 · Intermediate Uncountable noun

n. the system of pipes, tanks, and taps that brings water into a building and takes waste away.

n. the collective system of pipes, joints, and fixtures used for the distribution of potable water and the removal of waterborne wastes.

“The plumbing in this old house is very noisy whenever someone takes a shower.”

“The contractor discovered that the building's original lead plumbing had never been replaced, necessitating a complete overhaul of the water system.”

Usage

uncountable when referring to the system as a whole.

Synonyms

pipeswater system

02the trade

B2 · Upper Intermediate Uncountable noun

n. the job or business of installing and fixing pipes.

n. the professional trade or occupation of a plumber.

“He decided to go to college to study plumbing and start his own business.”

“After completing a four-year apprenticeship in plumbing, she became a licensed contractor specialising in industrial installations.”

Usage

uncountable in this sense.

Synonyms

pipefitting

03the human body

C1 · Advanced Uncountable noun Medicine Informal · Humorous

n. a funny way to talk about the tubes and organs inside your body, especially those for waste.

n. an informal or euphemistic reference to the internal vessels or ducts of the human body, particularly the genitourinary system.

“The doctor said there is nothing wrong with my plumbing, so I just need to drink more water.”

“He joked that at his age, he spent more time worrying about his internal plumbing than the pipes in his basement.”

Teaching tip

This is often used when someone is talking about health issues or surgery in a lighthearted way to avoid being too clinical.

Synonyms

04supporting work

C1 · Advanced Uncountable noun Informal

n. the basic, practical work that supports a larger project or system.

n. the underlying practical or technical infrastructure that supports a more visible or complex operation.

“The team spent weeks on the technical plumbing of the app before they even designed the screen.”

“The success of the merger depended less on the public announcement and more on the administrative plumbing handled by the legal teams.”

Usage

figurative use.

Word family

NOUN

plumbing(B1)

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.B1 PreliminaryIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.4.0–5.0TOEFL 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: 3.0–3.544–71TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.550–784
Frequency
Frequent
Level
B1 · Intermediate
Updated

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English Reference