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r (EN)
letter, symbol

Dëst Wuert kann och eng Form vu Folgendem sinn:
R (letter, noun, adjective, symbol)

letter “r”

r
  1. the lowercase form of the letter "R"
    The word "river" starts with the letter "r".

symbol “r”

r
  1. symbol for radius in engineering and geometry
    To find the area of a circle, use the formula A = πr².