The most common sound represented by the letter r in English is the voiced postalveolar approximant, pronounced a little more back and transcribed more precisely in IPA as ⟨ɹ̠⟩, but ⟨ɹ⟩ is often used for convenience in its place. For further ease of typesetting, English phonemic transcriptions might use the symbol ⟨r⟩ even though this symbol represents the alveolar trill in phonetic transcription.
The most common alveolar realization of /r/, with a trill [r] being the alternative realization. The more common uvular realizations are a fricative (either voiced [ʁ] or voiceless [χ]) and, more rarely, a trill [ʀ]. See Standard German phonology.
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