Tayyab means purity. People with this name usually tend to be clever, smart, good at judging people and understanding them. This is also the name given to the Kalimah testifying faith in Islam.
Kalimah Tayyab: La Ilaha Ill Allah Muhammadur Rasool Allah (There is no god only Allah, Muhammad is the Rasool (Messenger) of Allah)
by @Tayyab July 11, 2013