(n) :
an indeterminate central vowel sound as the "a" in "about" or the "e" in "the", represented as ? in IPA and @ in SAMPA and X-SAMPA; the letter ?, an upside-down lower-case E, used to represent such a sound
(n) :
an indeterminate central vowel sound as the "a" in "about" or the "e" in "the", represented as ? in IPA and @ in SAMPA and X-SAMPA; the letter ?, an upside-down lower-case E, used to represent such a sound