foul vs soil

foul and soil both are nouns.

Word	Noun	Adjective	Verb	Adverb
foul	Yes	Yes	Yes	No
soil	Yes	No	Yes	No

As verbs, soil is a hypernym of foul; that is, soil is a word with a broader meaning than foul:

Other hypernyms of foul include begrime, bemire, colly, dirty, grime.

As verbs, soil is a hypernym of foul; that is, soil is a word with a broader meaning than foul:

Other hypernyms of foul include begrime, bemire, colly, dirty, grime.

foul (noun)	soil (noun)
an act that violates the rules of a sport	the geographical area under the jurisdiction of a sovereign state
	material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use)
	anything regarded as making something unclean
	the part of the earth's surface consisting of humus and disintegrated rock

foul (adjective)	soil (adjective)
(of a baseball) not hit between the foul lines
disgustingly dirty; filled or smeared with offensive matter
characterized by obscenity
(of a manuscript) defaced with changes
offensively malodorous
highly offensive; arousing aversion or disgust
especially of a ship's lines etc
violating accepted standards or rules

foul (verb)	soil (verb)
become soiled and dirty	make soiled, filthy, or dirty
make unclean
spot, stain, or pollute
make impure
commit a foul; break the rules
hit a foul ball
become or cause to become obstructed