concoction vs stuffing

concoction and stuffing both are nouns.

Word	Noun	Adjective	Verb	Adverb
concoction	Yes	No	No	No
stuffing	Yes	No	No	No

As nouns, stuffing is a hyponym of concoction; that is, stuffing is a word with a more specific, narrower meaning than concoction:

concoction: any foodstuff made by combining different ingredients
stuffing: a mixture of seasoned ingredients used to stuff meats and vegetables

Other hyponyms of concoction include mincemeat, dressing, roux, batter, dough, mix, premix, filling.

concoction (noun)	stuffing (noun)
the act of creating something (a medicine or drink or soup etc.) by compounding or mixing a variety of components	padding put in mattresses and cushions and upholstered furniture
the invention of a scheme or story to suit some purpose	a mixture of seasoned ingredients used to stuff meats and vegetables
an occurrence of an unusual mixture
any foodstuff made by combining different ingredients