plumb·ing 
/ˈplʌmɪŋ/ noun
/ˈplʌmɪŋ/ noun [noncount] 1 : a system of pipes that carries water through a building
▪ The house has old plumbing. ▪ The cottage has electricity but no indoor plumbing. [=the cottage does not have a toilet or sink; there are no pipes that supply clean water to the cottage] ▪ a store that sells plumbing fixtures [=sinks, toilets, faucets, etc.] 2 : the work of a plumber : the job of installing and repairing sinks, toilets, water pipes, etc.
▪ The house has old plumbing. ▪ The cottage has electricity but no indoor plumbing. [=the cottage does not have a toilet or sink; there are no pipes that supply clean water to the cottage] ▪ a store that sells plumbing fixtures [=sinks, toilets, faucets, etc.]
