red pepper vs seasoning

red pepper and seasoning both are nouns.

Word	Noun	Adjective	Verb	Adverb
red pepper	Yes	No	No	No
seasoning	Yes	No	No	No

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

red pepper: ground pods and seeds of pungent red peppers of the genus Capsicum
seasoning: something added to food primarily for the savor it imparts

Other hypernyms of red pepper include flavorer, flavoring, flavourer, flavouring, seasoner.

red pepper (noun)	seasoning (noun)
ground pods and seeds of pungent red peppers of the genus Capsicum	the act of adding a seasoning to food
very hot red peppers; usually long and thin; some very small	something added to food primarily for the savor it imparts