Antonyms for Defence (opposite meaning)
WordNet sense 1 (the team that has the ball (or puck) and is trying to score):
offense, offence, offense
WordNet sense 2 (the lawyers acting for the state to put the case against the defendant):
prosecution
WordNet sense 3 (the institution and conduct of legal proceedings against a defendant for criminal behavior):
criminal prosecution
From the ODE community, based on WordNet
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