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Dictionary definition: R

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The Oxford American College Dictionary
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R 1 / är / (also r ) • n.( pl. Rs or R's ) the eighteenth letter of the alphabet. PHRASES: the three Rs reading, writing, and arithmetic. R 2 • abbr. ∎  rand. ∎  Réaumur. ∎  Regina or Rex: Elizabeth R. ∎  (also ® )registered as a trademark. ∎  Republican. ∎  ...

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Webster's NewWorld Dictionary;      185 words ...Webster's NewWorld Dictionary 01-01-1988 r or R (r) n., r's, R's 1. the eighteenth letter of the English alphabet: from the Greek rho, a borrowing from the Phoenician 2. any of the speech sounds that this letter represents ...

 
 
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