soil vs mud

soil and mud both are nouns.

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

As nouns, mud is a hyponym of soil; that is, mud is a word with a more specific, narrower meaning than soil:

soil: the part of the earth's surface consisting of humus and disintegrated rock
mud: water soaked soil; soft wet earth

As verbs, mud is a hyponym of soil; that is, mud is a word with a more specific, narrower meaning than soil:

Other hyponyms of soil include foul, contaminate, foul, pollute, smear, slime, muddy, muddy up, splash, mire, muck, muck up, crock, blemish, spot.

soil (noun)	mud (noun)
the geographical area under the jurisdiction of a sovereign state	slanderous remarks or charges
material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use)	water soaked soil; soft wet earth
anything regarded as making something unclean
the part of the earth's surface consisting of humus and disintegrated rock

soil (verb)	mud (verb)
make soiled, filthy, or dirty	soil with mud, muck, or mire
	plaster with mud