A more thorough explanation:

res

Res is a Latin word that means "thing" or "matter." In the legal system, it refers to an object, interest, or status, rather than a person.

• Res ipsa loquitur: This is a legal term that means "the thing speaks for itself." It is used when the facts of a case are so obvious that no further explanation is needed. For example, if a person slips and falls on a wet floor in a grocery store, the fact that the floor was wet speaks for itself as evidence of negligence on the part of the store.
• Res judicata: This is a legal principle that means "a matter already judged." It refers to a case that has already been decided and cannot be brought to court again. For example, if a person sues someone for breach of contract and loses, they cannot sue the same person for the same breach of contract again.
• Res jurisdiction: This is a legal term that refers to the power of a court to hear a particular case. For example, if a case involves property located in a certain state, only a court in that state has res jurisdiction to hear the case.

These examples illustrate how the term "res" is used in the legal system to refer to objects, interests, or statuses, rather than people. They show how the term is used in different legal contexts, such as negligence, contract law, and jurisdiction.