›[S or U]LAWan argument or explanation which you use to prove that you are not guilty of something: Now he says he's done nothing wrong, and I assume that will be his defence in court.a defense attorney/lawyer
the defence[S]›LAWthe person or people in a law case who have been accused of doing something illegal, and the lawyer or lawyers who are representing them: He claims that official documents of vital importance to the defence were not available. → Compareprosecution
›[C]a method used by a company to avoid having another company take control of it: The chief executive led a vigorous takeover defence.One possible defence strategy is to mount a higher counter-bid for the parent company.