Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “plumb”

plumb

verb [T] (WATER)    /plʌm/
to supply a building or a device with water pipes, or to connect a building or a device to a water pipe: We've discovered that our house isn't plumbed properly. I think we can plumb the new bath into the existing pipes. Have you plumbed the dishwasher in yet?Plumbing and pipes and sewage
(Definition of plumb verb (WATER) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of plumb

Word of the Day

altruistic

showing a wish to help or bring advantages to others, even if it results in disadvantage for yourself

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More