coriander seed vs flavourer

coriander seed and flavourer both are nouns.

Word	Noun	Adjective	Verb	Adverb
coriander seed	Yes	No	No	No
flavourer	Yes	No	No	No

As nouns, flavourer is a hypernym of coriander seed; that is, flavourer is a word with a broader meaning than coriander seed:

Other hypernyms of coriander seed include flavorer, flavoring, flavouring, seasoner, seasoning.

coriander seed (noun)	flavourer (noun)
dried coriander seeds used whole or ground	something added to food primarily for the savor it imparts