The phrase "ply weapons" implies the act of wielding or using weapons. The antonyms of this phrase would, therefore, be terms that suggest the opposite of violence and aggression. Some antonyms for "ply weapons" may include: seek peace, promote harmony, encourage cooperation, nurture diplomacy, build bridges, foster empathy, and cultivate understanding. These antonyms highlight the importance of resolution and understanding in a peaceful society. Rather than resorting to violence, we need to promote the values of peace, empathy, and cooperation to build a better world for present and future generations.