What does the word koah mean?

The word "koah" is not a recognized word in English or any major language. It is possible that you have misspelled the word, or that it is a word from a specific dialect or language that is not commonly known.

To help me understand what you mean, please provide some context. For example:

* Where did you encounter this word? (e.g., a book, a conversation, online)

* What was the word's meaning in the context it was used?

* What language do you think it might be from?

With more information, I can help you understand what "koah" might mean.