Sealing is the process of closing or securing an object or space to prevent the passage of air, liquids, or contaminants. This can be done using various materials such as adhesives, tapes, or gaskets. Sealing is essential in many industries, including construction, automotive, and food packaging, to ensure safety and maintain quality. In addition to physical sealing, the term can also refer to the act of making something official or final, such as sealing a document with a signature or notary seal. This type of sealing helps to verify authenticity and protect against tampering or fraud.