Three-r-s definition
Reading, writing, and arithmetic, considered as the fundamentals of elementary education.
pluralNoun
Reading, writing, and arithmetic, regarded as the basic elementary studies and the fundamentals of an education.
noun
Common misspelling of three Rs.
noun
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Origin of three-r-s
- From the phrase reading, 'riting, and 'rithmetic alteration of reading, writing, and arithmetic
From American Heritage Dictionary of the English Language, 5th Edition