seal

A "seal" can mean a few different things, but the main idea is often about closing or making something secure. You can seal a letter with wax, seal a jar to keep food fresh, or talk about the rubber part around a window that keeps out air and water. It can also mean an official stamp or mark that shows a document is real, such as a government seal or a notary's mark. And of course, a seal is also a marine animal with a smooth body and flippers, often seen resting on rocks by the sea. You may also hear "seal the deal," which means to finish an agreement.

Here are some examples: "The envelope had a broken wax seal." "The notary public applied her official seal to the contract." "We saw a colony of seals sunbathing on the beach."

The word "seal" has a fascinating history. While the name for the marine animal has ancient Germanic roots, the word used for an official mark traces back to Latin. This blend of origins explains the word's many distinct modern meanings.

At its core, to seal something means to close it tightly or securely, preventing anything from entering or escaping. You might seal a jar of jam to keep it fresh or seal a room to prevent the spread of sound. Figuratively, you can "seal someone's fate," meaning their destiny is fixed and unchangeable.

"Seal" also refers to an official emblem or mark used to show that a document, contract, or organization is genuine. These seals often have detailed designs and stand for authority or approval. Think of a royal seal, a university seal, or the Great Seal of the United States.

And then there are seals—the marine mammals. These smooth-bodied animals are part of the group that includes walruses and sea lions. They are well known for living in the ocean, especially in cold areas, and are often seen resting on rocks, swimming underwater, or staying close to the coast.

Finally, "seal" is used idiomatically in phrases like "sealing the deal," meaning to finalize an agreement. This highlights the sense of closure and security inherent in the word's meaning. Whether you are closing a container, authenticating a document, admiring a marine creature, or finalizing a bargain, the concept of a seal revolves around securing, confirming, and making things complete.