/əˈpoʊ.nənt/ – Noun
Definition: 1. đối phương;
2. người đưa ra ý kiến phản đối, người đưa kháng nghị.
A more thorough explanation: An opponent is a person or entity that is in opposition to another party in a legal proceeding, dispute, competition, or conflict.
Example: The opponent filed a motion to dismiss the case.