sewage
n. C / U B2 Upper Intermediate US //ˈsuədʒ// UK //sˈuːɪdʒ// sewage
n. waste water and liquid waste from homes and factories. It is dirty water that needs cleaning before it goes back into the environment.
n. liquid waste matter, especially human excrement, conveyed through sewers. Typically uncountable in general usage; countable when referring to specific systems or types of waste.
The city pumps sewage into the river.
The new plant treats sewage before releasing clean water back into the lake.
Modern infrastructure relies on complex networks to transport sewage away from densely populated urban centers efficiently.
From sewer (“system of pipes used to remove human waste and to provide drainage”) + -age or from sew (“to drain or draw off water”) + -age.