soil in WordNet English dictionary

1. make soiled, filthy, or dirty
   "don't soil your clothes when you play outside!"
   dirty  soil  begrime  grime  colly  bemire 
   

1. the state of being covered with unclean things
   dirt  filth  grime  soil  stain  grease  grunge 
   
2. the part of the earth's surface consisting of humus and disintegrated rock
   soil  dirt 
   
3. material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use)
   "the land had never been plowed"; "good agricultural soil"
   land  ground  soil 
   
4. the geographical area under the jurisdiction of a sovereign state
   "American troops were stationed on Japanese soil"
   territory  soil