Definition of "Soil" :
noun: the geographical area under the jurisdiction of a sovereign state
"American troops were stationed on Japanese soil."
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)
"Good agricultural soil."
noun: the state of being covered with unclean things
noun: the part of the earth's surface consisting of humus and disintegrated rock
verb: make soiled, filthy, or dirty
"Don't soil your clothes when you play outside!."