There are other words that could be used in similar contexts, depending on the specific situation:
* Discord: This refers to a lack of harmony or agreement.
* Conflict: This implies a more serious disagreement that could potentially lead to a struggle or fight.
* Disagreement: This is a general term for any difference of opinion.
* Strife: This describes a situation of intense conflict or struggle.
The best choice depends on the specific nuance you want to convey.