The open-mid central rounded vowel, or low-mid central rounded vowel, is a vowel sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is . The symbol is called closed reversed epsilon. It was added to the IPA in 1993; before that, this vowel was transcribed .
IPA charts were first published with this vowel transcribed as a closed epsilon, (that is, a closed variant of , much as the high-mid vowel letter is a closed variant of ), and this variant made its way into Unicode as . The IPA charts were later changed to the current closed reversed epsilon , and this was adopted into Unicode as .