blini vs flapcake

blini and flapcake both are nouns.

Word	Noun	Adjective	Verb	Adverb
blini	Yes	No	No	No
flapcake	Yes	No	No	No

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

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

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

blini (noun)	flapcake (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