sheath vs aiglet

sheath and aiglet both are nouns.

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

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

Other hyponyms of sheath include aglet, cot, fingerstall, holster, scabbard.

sheath (noun)	aiglet (noun)
a protective covering (as for a knife or sword)	ornamental tagged cord or braid on the shoulder of a uniform
a dress suitable for formal occasions	metal or plastic sheath over the end of a shoelace or ribbon
an enveloping structure or covering enclosing an animal or plant organ or part