- sheath - a protective covering for a knife or sword
--1 is a kind of protective covering, protective cover, protection
--1 has particulars:aglet, aiglet; fingerstall, cot; holster; scabbard - sheath, case - an enveloping structure or covering enclosing an animal or plant organ or part
--2 is a kind of covering, natural covering, cover
--2 has particulars:theca; lorica; medullary sheath, myelin sheath; neurolemma, neurilemma; husk - cocktail dress, sheath - a dress suitable for formal occasions
--3 is a kind of dress, frock
- sheath, case - an enveloping structure or covering enclosing an animal or plant organ or part