General synonyms:
* Argument: A verbal disagreement.
* Controversy: A prolonged disagreement or debate.
* Conflict: A serious disagreement or argument.
* Quarrel: A heated argument or disagreement, often between individuals.
* Contention: A claim or point of view that is disputed.
More specific synonyms:
* Contestation: A formal challenge or objection.
* Controversy: A prolonged disagreement or debate, often involving public opinion.
* Feud: A long-standing and bitter dispute, often between families or groups.
* Bicker: To argue in a petty or annoying way.
* Wrangle: To argue or dispute forcefully.
The best word to use will depend on the specific context of the situation. For example, if you are talking about a legal disagreement, "contestation" might be a good choice. If you are talking about a personal argument, "quarrel" might be more appropriate.