Quick Quiz: Nouns Score: Change category, Flip order Reset Incorrect! Try again. Noun: flatfoot Your choice? any of several North American plants of the genus Erigeron having daisylike flowers; formerly believed to repel fleas a foot afflicted with a fallen arch; abnormally flattened and spread out the trait of being easily persuaded   (Noun: flexibility) a ground-training machine that simulates the conditions of flying a plane