/ɪˈliːɡəl ɪn ɪtˈsɛlf/ – Phrase
Definition: vốn là bất hợp pháp.
A more thorough explanation: “Illegal” refers to something that is prohibited by law or not authorized by law. It describes an action, behavior, or object that is against the law or not in compliance with legal regulations.
Example: The court found that the contract was illegal in itself due to the fraudulent misrepresentation by the defendant.