Guttural R
Many Jewish immigrants to Israel spoke a variety of Arabic in their countries of origin and pronounced the Hebrew rhotic as an alveolar tap , similar to Arabic '. Gradually, many of them began pronouncing their Hebrew rhotic as a voiced uvular fricative , a sound similar or (depending on the Arabic dialect) identical to Arabic '. However, in modern Sephardic and Mizrahi poetry and folk music an alveolar rhotic continues to be used.
Yemenite Hebrew
Among the dialects of Hebrew preserved into modern times, Yemenite Hebrew is regarded as one of the forms that retains very many features of Hebrew as used in ancient times, particularly Tiberian Hebrew and Mishnaic Hebrew. This perception is motivated in part by the fact that Yemenite Hebrew preserves many consonant sounds represented by individual letters in the Hebrew alphabet that have been lost elsewhere - except for "sāmeḵ" () and "śīn" (), which are both pronounced , but which had already merged in ancient times, as evident in the spelling variants in the Dead Sea Scrolls.