sheathnounfeminine/ˈbɐjɲɐ/mediumbai·nhaPortuguesEnglishEspanolFrancaisDefinitionA close-fitting cover for the blade of a knife or sword.He slid the dagger back into its leather sheath.The sword's sheath was decorated with silver.synscabbardcaseCommon collocationsleather sheathsword sheathknife sheathdraw from its sheathEtymologyDo latim 'vagina', pelo galego-português 'vainha'.Related wordsembainhardesembainharbainheira