"Expires" Natural Recordings by Native Speakers
Expires means to reach the end of a period of time, such as the expiration date of a product or a deadline, and become invalid, obsolete, or no longer valid.
Expiatorious: (adjective) Relating to or providing an expiation, which is a payment or sacrifice made to atone for a wrong or sin. In other words, it refers to something that purifies or redeems one from guilt or sin.
The word "expiry" refers to the time or date after which something, such as a contract, a payment, or a product, is no longer valid or can no longer be used.
The word "explain" means to give a clear and detailed description or account of something so that it can be understood. It can also mean to make something that is confusing or obscure understandable by providing a clear and logical explanation.