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English definition of “R, r”

R, r

noun (RIVER)    /ɑːr/ US  /ɑːr/ (plural Rs, R's or r's)
written abbreviation for river, used in writing before or after the name of a river : R ThamesWatercourses and waterfalls
(Definition of R, r noun (RIVER) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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