mead vs trojniak

mead and trojniak both are nouns.

Word	Noun	Adjective	Verb	Adverb
mead	Yes	No	No	No
trojniak	Yes	No	No	No

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

mead: made of fermented honey and water
trojniak: a Polish mead, made using two units of water for each unit of honey.

Other hyponyms of mead include metheglin, czworniak, dwojniak.

mead (noun)	trojniak (noun)
made of fermented honey and water	a Polish mead, made using two units of water for each unit of honey.