packing material vs wadding

packing material and wadding both are nouns.

Word	Noun	Adjective	Verb	Adverb
packing material	Yes	No	No	No
wadding	Yes	No	No	No

As nouns, packing material and wadding are synonyms defined as:

packing material and wadding: any material used especially to protect something

Other synonyms of packing material include packing.

packing material (noun)	wadding (noun)
any material used especially to protect something	any material used especially to protect something