EDIT In the IPA this symbol represents a lower-mid back rounded vowel. In vowel classification schemes that do not distinguish between low-mid and high-mid, it is classified as a mid back lax rounded vowel.

 dan.mccloy 

EDIT International Phonetic Alphabet

+ Cardinal Vowel No. 6
+ Example in English // morning [ˈmɔːnɪŋ] (BE)
+ Sound example

+ Alternatives // unknown
+ Former versions // unknown
+ Origin // Latin alphabet, small letter
+ Visual characterization // small letter c rotated 180°

+ In the IPA since 1887
+ IPA number 306

+ This sound can be found in Albanian, Chinese, Dutch, English, French, Georgian, German, Italian, Norwegian, Polish, Portuguese, Swedish and Vietnamese.


Synonyms

English
+ Official name in the IPA // ›open-mid back rounded vowel‹
+ Nonstandard // open ›o‹


+ Source //
Principles of the International Phonetic Association, London, 1949. /
Journal of the International Phonetic Association, 1989. /
Wikipedia. Die Liste der IPA-Zeichen & History of the International Phonetic Alphabet. /
Handbook of the International Phonetic Association: A Guide to the Use of the International Phonetic Alphabet. /
Pullum, Geoffrey and William A. Ladusaw. Phonetic Symbol Guide. Second edition.

 FrauFriedrich