When it comes to expressing opinions or having disagreements with others, there are a plethora of synonyms for the phrase "argue about". Some words and phrases you can use instead include "debate", "discuss", "dispute", "contend", "controversy", "quarrel", "wrangle", "clash", "bicker", "squabble", "feud", or "altercate". Each of these words carries a slightly different connotation and can be used in various contexts. Whether you are having a heated political discussion with a friend or a simple disagreement with a co-worker, having a diverse vocabulary of synonyms can help you better articulate your thoughts and feelings.