Similar in meaning:
* Cause: This word can sometimes be used interchangeably with "case," especially in legal contexts (e.g., "the cause of the accident" vs. "the case of the accident").
* Instance: This word emphasizes a single occurrence or example (e.g., "a case of mistaken identity" vs. "an instance of mistaken identity").
Homophones (same pronunciation, different spelling and meaning):
* Caze: This is a very uncommon word and may not be widely understood. It refers to a type of cheese.
Other words that could be considered depending on context:
* Suit: This word can be used for a legal case or a set of matching clothes, and while not a true homonym, it can share a similar sense in some situations.
* Situation: This word can be used to describe a particular set of circumstances, which could be similar to a "case."
Ultimately, the best alternative to "case" will depend on the specific context and intended meaning.