| 澳 | ào | deep bay; cove; harbor; abbr. for Macao 澳门; abbr. for Austria 奥地利 and Australia 澳大利亚 |
| 澳大利亚 | Ào dà lì yà | Australia; Australian; same as 澳洲 |
| 港澳 | Gǎng Ào | Hong Kong 香港 and Macao 澳门 |
| 澳门 | Ào mén | Macao; Aomen; Macau |
| 澳洲 | Ào zhōu | Australia (continent); abbr. for 澳大利亚 |
| 中澳 | Zhōng Ào | China-Australia (relations) |
| 南方澳渔港 | Nán fāng ào Yú gǎng | Nanfang-ao Port in Yilan county 宜兰县, Taiwan |
| 南澳 | Nán ào | Nan'ao county in Shantou 汕头, Guangdong; Nan'ao township in Yilan county 宜兰县, Taiwan |
| 南澳大利亚州 | Nán ào dà lì yà zhōu | South Australia, Australian state |
| 南澳岛 | Nán ào dǎo | Nan'ao Island in Shantou prefecture 汕头, Guangdong province |
| 南澳县 | Nán ào xiàn | Nan'ao county in Shantou 汕头, Guangdong |
| 南澳乡 | Nán ào xiāng | Nan'ao township in Yilan county 宜兰县, Taiwan |
国务院港澳事务办
公室 | Guó wù yuàn Gǎng Ào Shì wù Bàn gōng shì | Hong Kong and Macao Affairs Office (State Council, of PRC) |
| 港澳地区 | Gǎng Ào dì qū | Hong Kong and Macao area |
| 港澳台 | Gǎng Ào Tái | Hong Kong 香港, Macao 澳门 and Taiwan 台湾 |
| 澳元 | Ào yuán | Australian dollar |
| 澳大利亚国立大学 | Ào dà lì yà guó lì dà xué | Australian National University (ANU), Canberra |
| 澳大利亚总督 | Ào dà lì yà zǒng dū | Governor-General of Australia |
| 澳大利亚联邦 | Ào dà lì yà lián bāng | Commonwealth of Australia |
| 澳大利亚首都特区 | Ào dà lì yà shǒu dū tè qū | Australian Capital Territory |
| 澳币 | Ào bì | Australian dollar |
| 澳式橄榄球 | Ào shì gǎn lǎn qiú | Australian rules football; Aussie rules |
| 澳新军团 | Ào Xīn jūn tuán | Australian and New Zealand Army Corps (ANZAC) |
| 澳新军团日 | Ào xīn jūn tuán rì | Anzac Day |
| 澳洲小鹦鹉 | Ào zhōu xiǎo yīng wǔ | lorikeet |
| 澳洲广播电台 | Ào zhōu Guǎng bō Diàn tái | Australian Broadcasting Corporation (ABC), Australian state-run broadcaster |
| 澳纽 | Ào Niǔ | Australia and New Zealand |
| 澳门国际机场 | Ào mén Guó jì Jī chǎng | Macau International Airport |
| 澳门市 | Ào mén shì | Municipality of Macau; Concelho de Macau |
| 澳门立法会 | Ào mén Lì fǎ huì | Legislative Council of Macao |
| 澳际 | Ào jì | Aoji, education agent |
临时澳门市政执行
委员会 | lín shí Ào mén shì zhèng zhí xíng wěi yuán huì | Provisional Municipal Council of Macau; Câmara Municipal de Macau Provisória |
| 苏澳 | Sū ào | Su'ao town in Yilan county 宜兰县, Taiwan |
| 苏澳镇 | Sū ào zhèn | Su'ao town in Yilan county 宜兰县, Taiwan |
| 西澳大利亚 | Xī Ào dà lì yà | Western Australia (State of Australia) |
| 西澳大利亚州 | Xī ào dà lì yà zhōu | Western Australia, Australian State |
| 韩澳 | Hán Ào | South Korea and Australia |
