The word "proprietary" can be both an adjective and a noun, and here's a simple explanation for each.
Definition: When something is described as "proprietary," it means that it is owned by a specific person or company and is protected by laws like trademarks, patents, or copyrights. This means that no one else can use, sell, or copy it without permission.
Definition: When "proprietary" is used as a noun, it refers to a type of business that is owned by one person. This person is responsible for all the business's debts and gets to keep all the profits.
In more advanced contexts, "proprietary" may relate to trade secrets or proprietary technology, which companies often keep confidential to maintain a competitive edge.
While "proprietary" does not have common idioms or phrasal verbs associated with it, it is often used in discussions about business ownership and legal rights.