sheath vs husk

sheath and husk both are nouns.

Word	Noun	Adjective	Verb	Adverb
sheath	Yes	No	No	No
husk	Yes	No	Yes	No

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

sheath: an enveloping structure or covering enclosing an animal or plant organ or part
husk: outer membranous covering of some fruits or seeds

Other hyponyms of sheath include theca, lorica, medullary sheath, myelin sheath, neurilemma, neurolemma.

sheath (noun)	husk (noun)
a protective covering (as for a knife or sword)	outer membranous covering of some fruits or seeds
a dress suitable for formal occasions	material consisting of seed coverings and small pieces of stem or leaves that have been separated from the seeds
an enveloping structure or covering enclosing an animal or plant organ or part

sheath (verb)	husk (verb)
	remove the husks from