/vəˈlɪdəti/ – noun
Definition: 1. hiệu lực pháp lý, giá trị pháp lý;
2. thời hạn có hiệu lực;
3. sự có căn cứ vững chắc.
A more thorough explanation: Validity refers to the legal sufficiency or effectiveness of a document, contract, or agreement. In the context of law, validity typically refers to whether a document or agreement is legally binding and enforceable. A valid document or contract meets all legal requirements and is recognized as legally effective.
Example: The validity of the contract was called into question due to a lack of signatures from all parties involved.