The close-mid front rounded vowel, or high-mid front rounded vowel, is a type of vowel sound used in some spoken languages.
The symbol in the International Phonetic Alphabet that represents the sound is ⟨ø⟩, a lowercase letter o with a diagonal stroke through it, borrowed from Danish, Norwegian, and Faroese, which sometimes use the letter to represent the sound. This sound is represented by the letter ⟨ø⟩ in most of Scandinavia; by the digraphs ⟨eu⟩ and ⟨œu⟩ (using the ⟨œ⟩ ligature) in French; and by ⟨ö⟩ in many languages like German-derived languages, Estonian, Swedish, Finnish, and Icelandic. The symbol is commonly referred to as "o, slash" in English.
For the close-mid front rounded vowel that is usually transcribed with the symbol ⟨ʏ⟩, see near-close front rounded vowel. If the usual symbol is ⟨ø⟩, the vowel is listed here.