Unicode 5.2
Character
Pinyin AO2 AO1 Jyutping ngou4
CNS 11643-1986 2-6574 CNS 11643-1992 2-6574 IRG Taiwan 2-6574

Unicode 12.1
Character
Pinyin āo Jyutping ngou4
CNS 11643-1986 2-6574 CNS 11643-1992 2-6574

Unicode 5.2
Character
Pinyin NUO4
IRG South Korea 2-6574

Records 1 - 3 of 3 retrieved in 628 ms