What does plumbing mean?
Plumbing denotes the connected pipes, valves, fixtures, and apparatus that carry water, sewage, and other fluids through a building or other structure. The word also names the skilled work of installing, connecting, repairing, and maintaining those components. In ordinary use, it covers household and commercial pipework rather than only the visible fixtures, including concealed pipes behind walls and beneath floors. Plumbing is essential to sanitation because it safely moves freshwater toward users and wastewater away from them. The term can also function as a restrained euphemism for bodily waste or the processes of elimination. Historically, its vocabulary comes from the long-standing use of lead in European pipework: the related word plumber ultimately derives from Latin plumbum, meaning lead. Today, plumbing remains a familiar term in construction, maintenance, housing, and public-health contexts, as well as a useful example of how a practical craft can become the name for an entire interconnected system.
nounThe system of pipes, valves, fixtures, and related apparatus that conveys water, sewage, or other fluids. It also refers to the work of installing, repairing, or maintaining such systems.
- A system of pipes, valves, fixtures, and other apparatus used to convey water, sewage, or other fluids.
- The installation, repair, or maintenance work performed on such systems.
- The discharge of bodily waste, especially in the euphemistic expression "the plumbing."
"The plumber repaired the leaking plumbing beneath the kitchen sink."
"The building's new plumbing includes separate shutoff valves for each apartment."
"The doctor asked whether she was having any trouble with her plumbing."
A rare count plural used mainly when referring to separate plumbing systems.
"The architect reviewed the plumbings of the two wings before renovation began."
The word traces back to plumbum, Latin for lead—the metal once commonly threaded through European buildings.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does plumbing come from?
English plumbing developed from plumber, meaning a worker who fitted lead pipes. Plumber comes through Old French plummier from Latin plumbarius, which is based on plumbum, the Latin word for lead. Its later meaning for pipework and the installation of pipes reflects the historical prominence of lead piping in European buildings.
How plumbing is actually used
The term is normally neutral and technical, though it is also used informally or euphemistically for bodily waste functions. It is generally treated as an uncountable noun, although a rare count plural exists in technical contexts.
Easily confused with plumbing
Plumbing is the system of pipes and fixtures, whereas a plumber is the person who installs or repairs it.