The open-mid front rounded vowel, or low-mid front rounded vowel, is a type of vowel sound, used in some spoken languages. Acoustically it is an open-mid front-central rounded vowel. The symbol in the International Phonetic Alphabet that represents this sound is . The symbol œ is a lowercase ligature of the letters o and e. Note that , a small caps version of the ligature, is used for a distinct vowel sound: the open front rounded vowel.