chaff vs razz

chaff and razz both are nouns.

Word	Noun	Adjective	Verb	Adverb
chaff	Yes	No	Yes	No
razz	Yes	No	Yes	No

As verbs, razz is a hypernym of chaff; that is, razz is a word with a broader meaning than chaff:

Other hypernyms of chaff include bait, cod, rag, rally, ride, tantalise, tantalize, taunt, tease, twit.

chaff (noun)	razz (noun)
foil in thin strips; ejected into the air as a radar countermeasure	a cry or noise made to express displeasure or contempt
material consisting of seed coverings and small pieces of stem or leaves that have been separated from the seeds

chaff (verb)	razz (verb)
be silly or tease one another	harass with persistent criticism or carping