R̃ (lower case:r̃), is a LatinR with a diacriticaltilde. In theInternational Phonetic Alphabet it represents anasalized version of atrill consonant, or in broader transcription also anasalized flap or tap.
InLithuanian, the R with tilde “R̃, r̃” is rarely used and is found in some grammar texts, dictionaries or textbooks. The tilde is used like thecircumflex, it indicates the longtonic accent. Therefore, the R with a tilde indicates an /r/ that is part of adiphthong with a tonic accent.
It is not to be confused withȒ (R with inverted breve),R̄ (R with macron) orŘ (R with háček).
It was used in theAlbanianAgimi alphabet for thevoiced alveolar trill, now represented by the digraphRr.
It is also used in Hausa to differentiate thealveolar tap /ɾ/, represented by R, from theretroflex one.
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