Meaning of “water main” in the English Dictionary

american-english dictionary

"water main" in American English

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water mainnoun [ C ]

us /ˈwɔ·t̬ər ˌmeɪn, ˈwɑt̬·ər/

a large underground pipe that supplies water to buildings in an area of a city or town

(Definition of “water main” from the Cambridge Academic Content Dictionary © Cambridge University Press)