Dictionary definition · soil
noun
- anything regarded as making something unclean
- the part of the earth's surface consisting of humus and disintegrated rock
- 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"
- the geographical area under the jurisdiction of a sovereign state"American troops were stationed on Japanese soil"
verb
- make soiled, filthy, or dirty"don't soil your clothes when you play outside!"
Source: Open English WordNet (CC BY 4.0).