filth in WordNet English dictionary

1. any substance considered disgustingly foul or unpleasant
   filth  crud  skank 
   
2. the state of being covered with unclean things
   dirt  filth  grime  soil  stain  grease  grunge 
   
3. an offensive or indecent word or phrase
   obscenity  smut  vulgarism  filth  dirty word 
   
4. a state characterized by foul or disgusting dirt and refuse
   filth  filthiness  foulness  nastiness