/rʌn ʌv vəˈlɪdəti/ – Phrase
Definition: thời hạn hiệu lực.
A more thorough explanation: “Run of validity” refers to the period during which a legal document, such as a contract or license, remains in effect or valid. It signifies the duration for which the document is legally binding and enforceable.
Example: The contract specifies that the services provided will be for a run of validity of one year, starting from the date of signing.