To say "no" accurately, you'll need to specify the language you're interested in.
Here are some examples of "no" in different African languages:
* Swahili: Hapana
* Yoruba: Bẹẹkọ
* Zulu: Cha
* Amharic: አይደለም (aydelem)
* Hausa: A'a
* Xhosa: Hayi
Could you please tell me which African language you'd like to know the word "no" in?