sewer
noun /ˈsuːə(r)/
/ˈsuːər/
- an underground pipe that is used to carry sewage away from houses, factories, etc.
- a sewer pipe/system
- an open sewer (= a channel on the surface of the ground that is used to carry sewage)
Extra ExamplesTopics Buildingsc1- Much of the water runs away down the sewers.
- A network of sewer tunnels runs underneath the prison.
Oxford Collocations DictionarySewer is used before these nouns:- line
- rat
- tunnel
- …
Word OriginMiddle English (denoting a watercourse to drain marshy land): from Old Northern French seuwiere ‘channel to drain the overflow from a fish pond’, based on Latin ex- ‘out of’ + aqua ‘water’.