* A misspelling: It might be a variation of a name like "Denise" or "Denisa."
* A unique name: It could be a name created by someone, perhaps as a combination of other words.
* A specific term: It could have a specific meaning in a particular field or context.
To help me understand what "Denisha" means, please provide more context:
* What language is it in?
* Where did you encounter this word?
* What was the context of the word?
With more information, I can try to give you a more accurate answer.