hadith vs Sunnah

hadith and Sunnah both are nouns.

Word	Noun	Adjective	Verb	Adverb
hadith	Yes	No	No	No
Sunnah	Yes	No	No	No

As nouns, hadith and Sunnah are synonyms defined as:

hadith and Sunnah: (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

Other synonyms of hadith include Sunna.

hadith (noun)	Sunnah (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	(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