poppy seed vs flavoring

poppy seed and flavoring both are nouns.

Word	Noun	Adjective	Verb	Adverb
poppy seed	Yes	No	No	No
flavoring	Yes	No	No	No

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

poppy seed: small grey seed of a poppy flower; used whole or ground in baked items
flavoring: something added to food primarily for the savor it imparts

Other hypernyms of poppy seed include flavorer, flavourer, flavouring, seasoner, seasoning.

poppy seed (noun)	flavoring (noun)
small grey seed of a poppy flower; used whole or ground in baked items	something added to food primarily for the savor it imparts