/tə bɪˈkʌm ˈɑpərətɪv/ – Phrase
Definition: bắt đầu có hiệu lực.
A more thorough explanation: “To become operative” refers to the point in time when a law, regulation, contract, or other legal document goes into effect and becomes enforceable or valid.
Example: The new law will only become operative once it is signed by the president.