filth
noun /fɪlθ/
  /fɪlθ/
- [uncountable] any very dirty and unpleasant substance- The floor was covered in grease and filth.
 
- [uncountable] videos, magazines, websites, etc. that are connected with sex and that are considered very rude and offensive- How can you watch such filth?
 
- the filth[plural] (British English, slang) an offensive word for the police
Word OriginOld English fȳlth ‘rotting matter, rottenness’, also ‘corruption, obscenity’, of Germanic origin; related to Dutch vuilte, also to foul.