Polemicize refers to engaging in a heated or controversial argument or debate. You can use alternative words to express similar meanings. For instance, you can use to argue, to debate, to dispute, to contend, to quarrel, to disagree, to wrangle, to confront, to oppose, to criticize, to refute, to contradict, or to resist. These words can help you better frame your argument and communicate your point of view effectively. It is essential to choose the right synonym that suits the context and tone of the conversation to avoid confusion and misunderstandings. Using strong and assertive language can help you convey your opinions and convince others to agree with you.