- See Also:
- - slot
  - sloth
  - slothful
  - slouch
  - slough
  - slovenly
  - slow
  - slowdown
  - slowly
  - slowness
  - sludge
  - slug
  - sluggish
  - sluggishness
  - sluice
  - slum
  - slumber
  - slump
  - slur
  - slush
  - slut
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sludge

UK:^*^*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈslʌdʒ/US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/slʌdʒ/ ,USA pronunciation: respelling(sluj)

sludge
WordReference English Thesaurus © 2026

Sense: Mud

Synonyms:

muck Collocations, ooze Collocations, slop, mud Collocations

Sense: Waste

Synonyms:

refuse Collocations, slime Collocations, filth Collocations, residue

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⇱ sludge - WordReference.com English Thesaurus

sludge