blini vs flannel-cake

blini and flannel-cake both are nouns.

Word	Noun	Adjective	Verb	Adverb
blini	Yes	No	No	No
flannel-cake	Yes	No	No	No

As nouns, flannel-cake is a hypernym of blini; that is, flannel-cake is a word with a broader meaning than blini:

blini: Russian pancake of buckwheat flour and yeast; usually served with caviar and sour cream
flannel-cake: a flat cake of thin batter fried on both sides on a griddle

Other hypernyms of blini include battercake, flannel cake, flapcake, flapjack, griddlecake, hot cake, hotcake, pancake.

blini (noun)	flannel-cake (noun)
Russian pancake of buckwheat flour and yeast; usually served with caviar and sour cream	a flat cake of thin batter fried on both sides on a griddle