casket /ˈkæs.kɪt/noun 4verb 1forms 3 noun4 •A little box, e.g. for jewellery.They will be here at five, take merely the clothes necessary for the journey and her jewel-casket. The Hunt for the Red Casked — 1826 •(US, Canada) A coffin. •(UK) An urn. •A gasket. verb1 •(literary) To put into, or preserve in, a casket.I have […] casketed my treasure. — 1604 formscasketed · casketing · caskets