General words:
* Conflict: A serious disagreement or argument.
* Contention: A heated debate or argument.
* Dispute: A disagreement or argument, especially one that is prolonged.
* Feud: A bitter, long-lasting quarrel.
* Strife: A state of bitter conflict or disagreement.
Words with a focus on struggle:
* Battle: A fierce struggle or conflict.
* Clash: A sudden and forceful collision or conflict.
* Fight: A physical or verbal struggle.
* Struggle: A difficult or prolonged effort to achieve something.
* Turmoil: A state of great confusion, disorder, and unrest.
Words with a focus on disagreement:
* Dissension: A difference of opinion or disagreement, especially within a group.
* Friction: A state of disagreement or tension between people or groups.
* Opposition: The act of disagreeing with or resisting something.
* Controversy: A public disagreement or argument.
The best word to use will depend on the specific context and the nuances of the disagreement or struggle you are describing.