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 to show that it has come from the person who claims to have issued it. 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 nonporous coating to (a surface) to make it impervious. Fry (food) briefly in hot fat to prevent it from losing too much of its moisture during subsequent cooking. Conclude, establish, or secure (something) definitively, excluding the possibility of reversal or loss. Fix a piece of wax or lead stamped with a design to (a document) to authenticate it. Hunt for seals. A member of an elite force within the US Navy specializing in guerrilla warfare and counterinsurgency.