/əˈfɜrmətɪv dɪˈfɛns/ – Phrase
Definition: việc biện hộ bác bỏ lý lẽ của nguyên đơn.
A more thorough explanation: a defendant’s statement in response to the prosecution’s or plaintiff’s claim which, if proved, will defeat the prosecution’s or plaintiff’s case
Example: In a case of assault or battery, a defendant may claim self-defense as an affirmative defense. This means that the defendant used reasonable force to protect themselves from harm.