Question: what is nzu in english language?
Answer: Calabash chalk is identified by different names such as calabar stone (English), la craie or argile (French), mabele (Lingala in Congo), nzu (Igbo of Nigeria), ndom (Efik/Ibibio Nigeria) eko (Bini/Edo Nigeria). It is also known as ebumba, poto and ulo. In Ghana it is known as shilè.