pfannkuchen vs flapjack

pfannkuchen and flapjack both are nouns.

Word	Noun	Adjective	Verb	Adverb
pfannkuchen	Yes	No	No	No
flapjack	Yes	No	No	No

As nouns, flapjack is a hypernym of pfannkuchen; that is, flapjack is a word with a broader meaning than pfannkuchen:

pfannkuchen: puffy mildly sweet lemon-flavored egg mixture sprinkled with confectioners' sugar and served with jam or a wine or fruit sauce
flapjack: a flat cake of thin batter fried on both sides on a griddle

Other hypernyms of pfannkuchen include battercake, flannel-cake, flannel cake, flapcake, griddlecake, hot cake, hotcake, pancake.

pfannkuchen (noun)	flapjack (noun)
puffy mildly sweet lemon-flavored egg mixture sprinkled with confectioners' sugar and served with jam or a wine or fruit sauce	a flat cake of thin batter fried on both sides on a griddle