common salt vs seasoning

common salt and seasoning both are nouns.

Word	Noun	Adjective	Verb	Adverb
common salt	Yes	No	No	No
seasoning	Yes	No	No	No

As nouns, seasoning is a hypernym of common salt; that is, seasoning is a word with a broader meaning than common salt:

common salt: white crystalline form of especially sodium chloride used to season and preserve food
seasoning: something added to food primarily for the savor it imparts

Other hypernyms of common salt include flavorer, flavoring, flavourer, flavouring, seasoner.

common salt (noun)	seasoning (noun)
white crystalline form of especially sodium chloride used to season and preserve food	the act of adding a seasoning to food
a white crystalline solid consisting mainly of sodium chloride (NaCl)	something added to food primarily for the savor it imparts