soil

(noun) the state of being covered with unclean things. Synonyms: dirt, filth, grime, stain, grease, grunge.

(noun) the part of the earth's surface consisting of humus and disintegrated rock. Synonyms: dirt.

(noun) material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use). Synonyms: land, ground. Examples: "The land had never been plowed." "Good agricultural soil."

(noun) the geographical area under the jurisdiction of a sovereign state. Synonyms: territory. Examples: "American troops were stationed on japanese soil."

(verb) make soiled, filthy, or dirty. Synonyms: dirty, begrime, grime, colly, bemire. Examples: "Don't soil your clothes when you play outside!."