Here are some other ways to say "yes" in Welsh, depending on the context:
* "Ydw" (pronounced "id-oo") - This is a more formal way of saying "yes". It's often used in response to a question asking for confirmation.
* "Oes" (pronounced "oh-ess") - This is another way of saying "yes", and it's often used in response to a question asking for information.
* "Bydd" (pronounced "bid") - This means "will" and can be used to express agreement to a suggestion or request.
The best way to choose the right "yes" depends on the situation and the tone you want to convey.