german pancake vs flapjack

german pancake and flapjack both are nouns.

Word	Noun	Adjective	Verb	Adverb
german pancake	Yes	No	No	No
flapjack	Yes	No	No	No

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

german pancake: 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 german pancake include battercake, flannel-cake, flannel cake, flapcake, griddlecake, hot cake, hotcake, pancake.

german pancake (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