1) Hadith 2) Path 3) Sunna 4) Way of life 1) Sunna 
Sunnah is the way of life prescribed as normative for Muslims on the basis of the teachings and practices of the Islamic prophet Muhammad and interpretations of the Quran. The word `sunnah` (سنة ˈsunna, plural سنن sunan ˈsunan, Arabic) is derived from the root (سن sa-n-na Arabic), meaning smooth and easy flow or direct flow path. The w.....
The Prophet Muhammad's life example as evidenced in the hadith (Esposito 2011
The life, practices, and sayings of Muhammad recorded as examples of perfect conduct in society, religion, action, etc. They contain the Hadith.
Sunna noun (Islam) the way of life prescribed as normative for Muslims on the basis of the teachings and practices of Muhammad and interpretations of the Koran