R

R is the eighteenth letter of the Latin alphabet.

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Semitic R?š (the head) developed into Greek ? (Rh?) and Latin R. The Latin and Etruscan forms of the letter added an extra stroke to distinguish it from a later form of the Greek Pi.

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See rhotic consonant, r-colored vowel, and guttural R for discussion of the family of 'r' sounds.

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In typography, there was once a form called the half r, which was lost before the long s was.

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In the International Phonetic Alphabet, 'r' represents the alveolar trill sound.

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Romeo represents the letter R in the NATO phonetic alphabet. In international Morse code the letter R is DitDahDit: ? - ?

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?: "?", "?" is a vowel and a letter used in the Danish, Faroese and Norwegian alphabets....

Rhotic consonant: Rhotic consonants, or "R"-like sounds, are non-lateral liquid consonants. This class of sounds is difficult to characterise phonetically, though most of them share some acoustic peculiarities, most notably a lowered third formant in their sound spectrum. However, "being r-like" is a strangely elus...

R-colored vowel: In phonetics, an r-colored vowel or rhotacized vowel is a vowel either with the tip or blade of the tongue turned up during at least part of the articulation of the vowel (a retroflex articulation) or with the tip of the tongue down and the back of the tongue bunched. Both articulations produce basi...