Definitions:
a device or substance that is used to join two things together so as to prevent them from coming apart or to prevent anything from passing between them

a piece of wax, lead, or other material with an individual design stamped into it, attached to a document as a guarantee of authenticity.

a thing regarded as a confirmation or guarantee of something

the obligation on a priest not to divulge anything said during confession

fasten or close securely

apply a non-porous coating to (a surface) to make it impervious

fry (food) briefly at a high temperature to prevent it from losing moisture during subsequent cooking

conclude, establish, or secure (something) definitively

fix a piece of wax or lead stamped with a design to (a document) to authenticate it.

a fish-eating aquatic mammal with a streamlined body and feet developed as flippers, that returns to land to breed or rest.