A gasket is a mechanical SEAL which is used to fill the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression. The term 'gasket' is often used interchangeably with the term 'SEAL'. The solutions for the term GASKET are SEAL (4 letters), ORING (5 letters), and SEALER (6 letters). A SEAL is a device used to prevent the passage of fluids or gases, while an O-ring is a type of gasket in the shape of a loop, usually made from rubber, plastic, or metal. A SEALER is a substance used to create a barrier between two surfaces, such as a sealant or adhesive.