apple a day
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A small preventive treatment wards off serious problems, as in He exercises regularly—an apple a day is his motto. This idiom shortens the proverb An apple a day keeps the doctor away, first cited about 1630.
QUIZ
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Test how much you really know about regular and irregular plural nouns with this quiz.
Question 1 of 9
Which of the following nouns has an irregular plural form?
Words nearby apple a day
applanometry, applaud, applaudable, applause, apple, apple a day, apple bee, apple blight, apple blossom, apple box, apple brandy
The American Heritage® Idioms Dictionary
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