ratification
formal confirmation / official approval / legal validation
Noun
This term describes the final step in making a legal or official agreement binding. It carries a heavy connotation of formality and authority, typically occurring after a preliminary agreement has been reached but before it becomes enforceable law. In administrative contexts, it refers to the retrospective validation of an action. This means a person or body grants official approval to something that has already happened, effectively treating the prior act as if it had been authorized from the start.