The term "valid" refers to something that is logically sound, acceptable, or well-founded. In various contexts, it indicates that an argument, claim, or piece of information is based on solid reasoning or evidence. For example, a valid argument in a debate is one that is supported by facts and follows logical principles. In legal terms, "valid" often describes documents or agreements that are legally binding and enforceable. A valid contract, for instance, must meet specific criteria, such as mutual consent and consideration, to be recognized by the law.