The close back unrounded vowel
, or high back unrounded vowel
is a type of vowel
sound used in some spoken languages
. The symbol in the International Phonetic Alphabet
that represents this sound is ⟨ɯ⟩. Typographically a turned letter ⟨m⟩, given its relation to the sound represented by the letter ⟨u⟩ it can be considered a ⟨u⟩ with an extra "bowl".