There are a few different ways to say “daddy” in Swahili, depending on the context.
The most common way to say “daddy” is “baba”. This can be used both as a term of endearment and as a more formal way to address someone who is older than you or in a position of authority.
Another way to say “daddy” is “mzee”, which is generally only used when addressing an older man. It carries a bit more respect than “baba” and would not typically be used between parent and child.
Finally, you could also use the word “papa”, which has a similar meaning to “daddy” but is less commonly used.