| 奥 | [ aò ] Austria, Austrian, abbr. for 奧地利|奥地利[Ao4 di4 li4], Olympic, Olympics, abbr. for 奧林匹克|奥林匹克[Ao4 lin2 pi3 ke4] |
| 奥 | [ aò ] obscure, mysterious |
| 奥丁 | [ aò dīng ] Odin (god in Norse mythology) |
| 奥丁谐振器 | [ aò dīng xié zhèn qì ] Oudin coil, Oudin resonator |
| 奥什 | [ aò shí ] Osh (city in Kyrgyzstan) |
| 奥克拉荷马 | [ aò kè lā hé mǎ ] Oklahoma, US state (Tw) |
| 奥克拉荷马州 | [ aò kè lā hé mǎ zhoū ] Oklahoma, US state (Tw) |
| 奥克斯纳德 | [ aò kè sī nà dé ] Oxnard, California |
| 奥克苏斯河 | [ aò kè sū sī hé ] Oxus River, alternative name for Amu Darya 阿姆河[A1 mu3 He2] |
| 奥克兰 | [ aò kè lán ] Auckland (New Zealand city), Oakland (California, US city) |
| 奥切诺斯 | [ aò qiē nuò sī ] Oceanus, a Titan in Greek mythology |
| 奥利奥 | [ aò lì aò ] Oreo cookies |
| 奥利安 | [ aò lì ān ] Orion (constellation, loan word), also written 獵戶座|猎户座 |
| 奥利给 | [ aò lì geǐ ] (neologism c. 2020) come on, you can do it! |
| 奥利维亚 | [ aò lì weí yà ] Olivia (name) |
| 奥匈帝国 | [ aò xiōng dì guó ] Austro-Hungarian Empire 1867-1918 |
| 奥卡姆剃刀 | [ aò kǎ mǔ tì daō ] Occam's razor |
| 奥古斯塔 | [ aò gǔ sī tǎ ] Augusta (place name: capital of Maine, city in Georgia etc) |
| 奥古斯都 | [ aò gǔ sī dū ] Augustus (name) |
| 奥国 | [ aò guó ] Austria |
| 奥地利 | [ aò dì lì ] Austria |
| 奥塞梯 | [ aò sè tī ] Ossetia (a Caucasian republic) |
| 奥塞罗 | [ aò saī luó ] Othello, 1604 tragedy by William Shakespeare 莎士比亞|莎士比亚 |
| 奥妙 | [ aò ] marvelous, mysterious, profound, marvel, wonder |
| 奥姆真理教 | [ aò mǔ zhēn lǐ ] Aum Shinrikyo (or Supreme Truth), the Japanese death cult responsible for the 1995 sarin gas attack on the Tokyo subway |
| 奥委会 | [ aò weǐ huì ] Olympic committee |
| 奥威尔 | [ aò weī ěr ] Orwell (name), George Orwell (1903-1950), British novelist, author of Animal Farm 動物農場|动物农场 and 1984 一九八四年 |
| 奥客 | [ aò kè ] (coll.) (Tw) troublesome customer, obnoxious guest (from Taiwanese 漚客, Tai-lo pr. [àu-kheh]) |
| 奥密克戎 | [ aò mì kè róng ] omicron (Greek letter) |
| 奥巴马 | [ aò bā mǎ ] Barack Obama (1961-), US Democrat politician, president 2009-2017 |
| 奥布里 | [ aò bù lǐ ] Aubrey (name) |
| 奥康内尔 | [ aò kāng neì ěr ] O'Connell (name), Daniel O'Connell (1775-1847), Irish nationalist and catholic activist |
| 奥康纳 | [ aò kāng nà ] O'Connor (name), Thomas Power O'Connor (1848-1929), Irish journalist and nationalist political leader |
| 奥德修斯 | [ aò dé xiū sī ] Odysseus |
| 奥德赛 | [ aò dé saì ] Homer's Odyssey |
| 奥托 | [ aò tuō ] Otto |
| 奥援 | [ aò yuán ] hidden ally, powerful support, support, backup |
| 奥数 | [ aò shù ] International Mathematical Olympiad (IMO), abbr. for 國際奧林匹克數學競賽|国际奥林匹克数学竞赛[Guo2 ji4 Ao4 lin2 pi3 ke4 Shu4 xue2 Jing4 sai4] |
| 奥数 | [ aò shù ] olympiad mathematics, competition math |
| 奥斯丁 | [ aò sī dīng ] Austin or Austen (name), Austin, Texas, also written 奧斯汀|奥斯汀[Ao4 si1 ting1] |
| 奥斯卡 | [ aò sī kǎ ] (film industry) Oscar (Academy Award), CL:屆|届[jie4], (name) Oscar |
| 奥斯卡金像奖 | [ aò sī kǎ jīn xiàng jiǎng ] Academy Awards, Oscars, CL:屆|届[jie4] |
| 奥斯威辛 | [ aò sī weī xīn ] Auschwitz (concentration camp) |
| 奥斯威辛集中营 | [ aò sī weī xīn jí zhōng yíng ] Auschwitz concentration camp |
| 奥斯曼 | [ aò sī màn ] Ottoman (empire) |
| 奥斯曼帝国 | [ aò sī màn dì guó ] the Ottoman Empire |
| 奥斯汀 | [ aò sī tīng ] Austin or Austen (name), Austin, Texas |
| 奥斯特洛夫斯基 | [ aò sī tè luò fū sī jī ] Nikolai Ostrovsky (1904-1936), Soviet socialist realist writer, Alexander Ostrovsky (1823-1886), Russian playwright |
| 奥斯瓦尔德 | [ aò sī wǎ ěr dé ] Oswald |
| 奥斯维辛 | [ aò sī weí xīn ] Auschwitz (concentration camp) |
| 奥斯陆 | [ aò sī lù ] Oslo, capital of Norway |
| 奥会 | [ aò huì ] (International or national) Olympic Committee (abbr. for 奧林匹克委員會|奥林匹克委员会), Olympic Games (abbr. for 奧林匹克運動會|奥林匹克运动会) |
| 奥朗德 | [ aò lǎng dé ] François Hollande (1954-), French Socialist politician, president of France 2012-2017 |
| 奥林匹亚 | [ aò lín pǐ yà ] Olympia (Greece) |
| 奥林匹克 | [ aò lín pǐ kè ] Olympic |
| 奥林匹克运动会 | [ aò lín pǐ kè yùn dòng huì ] Olympic Games, the Olympics |
| 奥林匹克运动会组织委员会 | [ aò lín pǐ kè yùn dòng huì zǔ zhī weǐ yuán huì ] Olympic Organizing Committee, abbr. to 奧組委|奥组委 |
| 奥林匹克体育场 | [ aò lín pǐ kè tǐ yù chǎng ] Olympic Stadium |
| 奥林巴斯 | [ aò lín bā sī ] Olympus, Japanese manufacturer of cameras and optical instruments |
| 奥波莱 | [ aò bō laí ] Opole, city in Poland |
| 奥尔巴尼 | [ aò ěr bā ní ] Albany, New York |
| 奥尔布赖特 | [ aò ěr bù laì tè ] Madeleine Albright (1937-), former US Secretary of State |
| 奥尔德尼岛 | [ aò ěr dé ní daǒ ] Alderney (Channel Islands) |
| 奥尔良 | [ aò ěr liáng ] Orléans |
| 奥特曼 | [ aò tè màn ] Ultraman, Japanese science fiction superhero |
| 奥特朗托 | [ aò tè lǎng tuō ] Otranto city on the southeast heel of Italy |
| 奥特朗托海峡 | [ aò tè lǎng tuō haǐ xiá ] Strait of Otranto between the heel of Italy and Albania |
| 奥特莱斯 | [ aò tè laí sī ] outlets (loanword), retail outlet (e.g. specializing in seconds of famous brands), factory outlet retail store |
| 奥卢 | [ aò lú ] Oulu (city in Finland) |
| 奥秘 | [ aò mì ] secret, mystery |
| 奥米伽 | [ aò mǐ gā ] omega (Greek letter Ωω) |
| 奥米可戎 | [ aò mǐ kě róng ] omicron (Greek letter Οο) |
| 奥纳西斯 | [ aò nà xī sī ] Onassis (name), Aristotle Onassis (1906-1975), Greek shipping magnate |
| 奥组委 | [ aò zǔ weǐ ] Olympic organizing committee, abbr. for 奧林匹克運動會組織委員會|奥林匹克运动会组织委员会 |
| 奥维耶多 | [ aò weí yē duō ] Oviedo (Asturian: Uviéu), capital of Asturias in northwest Spain |
| 奥胡斯 | [ aò hú sī ] Aarhus, city in Denmark |
| 奥腊涅斯塔德 | [ aò là niè sī tǎ dé ] Oranjestad, capital of Aruba |
| 奥兰多 | [ aò lán duō ] Orlando |
| 奥兰群岛 | [ aò lán qún daǒ ] Åland Islands, Finland |
| 奥西娜斯 | [ aò xī nuó sī ] Oceanus, a Titan in Greek mythology |
| 奥赖恩 | [ aò laì ēn ] Orion (NASA spacecraft) |
| 奥赛罗 | [ aò saì luó ] Othello (play by Shakespeare) |
| 奥迪 | [ aò dí ] Audi |
| 奥迪修斯 | [ aò dí xiū sī ] Odysseus, hero of Homer's Odyssey |
| 奥迹 | [ aò jì ] Holy mystery, Holy sacrament (of Orthodox church) |
| 奥运 | [ aò yùn ] abbr. for 奧林匹克運動會|奥林匹克运动会, Olympic Games, the Olympics |
| 奥运会 | [ aò yùn huì ] abbr. for 奧林匹克運動會|奥林匹克运动会, Olympic Games, the Olympics |
| 奥运村 | [ aò yùn cūn ] Olympic Village |
| 奥运赛 | [ aò yùn saì ] Olympic Games |
| 奥里萨邦 | [ aò lǐ sà bāng ] Odisha (formerly Orissa), eastern Indian state |
| 奥里里亚 | [ aò lǐ lǐ yà ] Aurelia, a hypothetical planet |
| 奥陌陌 | [ aò mò mò ] ʻOumuamua (interstellar object) |
| 奥陶系 | [ aò taó xì ] Ordovician system (geology), see 奧陶紀|奥陶纪 |
| 奥陶纪 | [ aò taó jì ] Ordovician (geological period 495-440m years ago) |
| 奥马哈 | [ aò mǎ hā ] Omaha |
| 奥马尔 | [ aò mǎ ěr ] Omar (Arabic name) |
| 奥黛莉 | [ aò daì lì ] Audrey, variant of 奧黛麗|奥黛丽[Ao4 dai4 li4] |
| 奥黛丽 | [ aò daì lì ] Audrey |
| ⇒ 亚尔发和奥米加 | [ yà ěr fā hé aò mǐ jiā ] Alpha and Omega |
| ⇒ 伊斯帕尼奥拉 | [ yī sī pà ní aò lā ] Hispaniola (Caribbean island including Haiti and the Dominican Republic) |
| ⇒ 克莉奥佩特拉 | [ kè lì aò peì tè lā ] Cleopatra (c. 70-30 BC), queen of Egypt |
| ⇒ 克里奥尔语 | [ kè lǐ aò ěr yǔ ] creole language |
| ⇒ 冬奥会 | [ dōng aò huì ] Winter Olympics |
| ⇒ 冬残奥会 | [ dōng cán aò huì ] Winter Paralympics |
| ⇒ 南奥塞梯 | [ nán aò saī tī ] South Ossetia |
| ⇒ 乔治b7奥威尔 | [ zhì aò weī ěr ] George Orwell (1903-1950), British novelist, author of Animal Farm 動物農場|动物农场 and 1984 |
| ⇒ 国奥会 | [ guó aò huì ] national Olympic committee, abbr. for 國際奧委會|国际奥委会 International Olympic committee |
| ⇒ 国际奥委会 | [ guó jì aò weǐ huì ] International Olympic Committee |
| ⇒ 国际奥林匹克委员会 | [ guó jì aò lín pǐ kè weǐ yuán huì ] International Olympic Committee |
| ⇒ 埃奥罗斯 | [ aī aò luó sī ] Aeolus, Greek God of winds |
| ⇒ 奥利奥 | [ aò lì aò ] Oreo cookies |
| ⇒ 安东尼与克莉奥佩特拉 | [ ān dōng ní yǔ kè lì aò peì tè lā ] Anthony and Cleopatra, 1606 tragedy by William Shakespeare 莎士比亞|莎士比亚 |
| ⇒ 怪人奥尔b7扬科维奇 | [ rén aò ěr yáng kē weí qí ] "Weird Al" Yankovic (1959-), US singer and writer of parody songs |
| ⇒ 爱奥尼亚海 | [ aì aò ní yà haǐ ] Ionian Sea between Italy and Greece |
| ⇒ 爱奥华 | [ aì aò huá ] Iowa, US state |
| ⇒ 爱奥华州 | [ aì aò huá zhoū ] Iowa, US state |
| ⇒ 戴奥辛 | [ daì aò xīn ] dioxin, carcinogenic heterocyclic hydrocarbon (esp. Taiwan usage) |
| ⇒ 拉齐奥 | [ lā qí aò ] Lazio (region in Italy) |
| ⇒ 新奥尔良 | [ xīn aò ěr liáng ] New Orleans, Louisiana |
| ⇒ 残奥 | [ cán aò ] Paralympics, same as Paralympic Games 殘奧會|残奥会[Can2 Ao4 hui4] |
| ⇒ 残奥会 | [ cán aò huì ] Paralympic Games |
| ⇒ 沙奎尔b7奥尼尔 | [ shā kuí ěr aò ní ěr ] Shaquille O'Neal (1972-), former NBA star |
| ⇒ 派力奥 | [ paì lì aò ] Fiat Palio |
| ⇒ 深奥 | [ shēn aò ] profound, abstruse, recondite, profoundly |
| ⇒ 潭奥 | [ tán aò ] profound, deep |
| ⇒ 特奥会 | [ tè aò huì ] Special Olympics |
| ⇒ 狄奥多 | [ dí aò duō ] Theodor (name) |
| ⇒ 狄奥多b7阿多诺 | [ dí aò duō ā duō nuò ] Theodor Ludwig Wiesengrund Adorno (1903-1969), German sociologist, philosopher, musicologist, and composer |
| ⇒ 玄奥 | [ xuán aò ] abstruse, profound mystery, the mysteries of the universe |
| ⇒ 珍b7奥斯汀 | [ zhēn aò sī tīng ] Jane Austen (1775-1817), English novelist, also written 簡·奧斯汀|简·奥斯汀[Jian3 · Ao4 si1 ting1] |
| ⇒ 毕尼奥夫 | [ bì ní aò fū ] Hugo Benioff (1899-1968), Caltech seismologist |
| ⇒ 毕尼奥夫带 | [ bì ní aò fū daì ] Benioff zone (geology), also called Wadati-Benioff zone |
| ⇒ 神奥 | [ shén aò ] mysterious, an enigma |
| ⇒ 科利奥兰纳斯 | [ kē lì aò lán nà sī ] Coriolanus, 1607 tragedy by William Shakespeare 莎士比亞|莎士比亚 |
| ⇒ 纽奥良 | [ niǔ aò liáng ] New Orleans, Louisiana |
| ⇒ 罗马里奥 | [ luó mǎ lǐ aò ] Romário |
| ⇒ 圣奥古斯丁 | [ shèng aò gǔ sī dīng ] St Augustine, Aurelius Augustinus (354-430), theologian and Christian philosopher, Sankt Augustin, suburb of Beuel, Bonn, Germany |
| ⇒ 圣安东尼奥 | [ shèng ān dōng ní aò ] San Antonio, Texas |
| ⇒ 艾奥瓦 | [ aì aò wǎ ] Iowa, US state |
| ⇒ 艾奥瓦州 | [ aì aò wǎ zhoū ] Iowa, US state |
| ⇒ 费奥多尔 | [ feì aò duō ěr ] Theodor of Fyodor (name) |
| ⇒ 路易斯b7伊纳西奥b7卢拉b7达席尔瓦 | [ lù yì sī yī nà xī aò lú lā dá xí ěr wǎ ] Luiz Inácio Lula da Silva, the thirty-fifth president of Brazil, Lula |
| ⇒ 迪奥 | [ dí aò ] Dior (brand name) |
| ⇒ 里奥斯 | [ lǐ aò sī ] Ríos (name) |
| ⇒ 里奥格兰德 | [ lǐ aò gé lán dé ] Rio Grande (Brasil) |
| ⇒ 重整奥思定会 | [ zhòng zhěng aò sī dìng huì ] Order of Augustinian Recollects, a mendicant Catholic religious order of friars and nuns |
| ⇒ 阃奥 | [ kǔn aò ] innermost room, (fig.) heart |
| ⇒ 马可b7奥勒留 | [ mǎ kě aò leī liú ] Marcus Aurelius (121-180), Roman Emperor |
| ⇒ 马里奥 | [ mǎ lǐ aò ] Mario (name) |
