Princeton's WordNet

1. sewage, sewerage(noun)

   waste matter carried away in sewers or drains

Kernerman English Learner's Dictionary

1. sewage(noun)ˈsu ɪdʒ

   dirty water and waste from people's bodies taken from buildings into a system of pipes

   a sewage treatment plant

Wiktionary

1. sewage(Noun)

   A suspension of water and solid waste, transported by sewers to be disposed of or processed.

2. sewage(Noun)

   (Obsolete usage) sewerage.

Origin: From or from sew + -age.

Webster Dictionary

1. Sewage(noun)

   the contents of a sewer or drain; refuse liquids or matter carried off by sewers

2. Sewage(noun)

   sewerage, 2

U.S. National Library of Medicine

1. Sewage

   Refuse liquid or waste matter carried off by sewers. (Webster, 3d ed)

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