|  |  | 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 |  | 
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|  |  | marvelous  / mysterious  / profound  / marvel  / wonder  |  | 
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|  |  | Aldous Huxley (1894–1963), British novelist and author of "Brave New World" 美麗新世界|美丽新世界 |  | 
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|  |  | Olympic Games; the Olympics  |  | 
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|  |  |  | HSK 7-9 | 
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|  |  | International Olympic Committee  |  | 
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|  |  | secret  / mystery  | HSK 7-9 | 
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|  |  | Audi  |  | 
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|  |  | Winter Olympics  |  | 
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|  |  | profound  / abstruse  / recondite  / profoundly  | HSK 7-9 | 
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|  |  | Ultraman, Japanese science fiction superhero  |  | 
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|  |  | Olympic  |  | 
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|  |  | Ossetia (ethnolinguistic region in the Caucasus Mountains)  |  | 
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|  |  | International Olympic Committee  |  | 
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|  |  | Barack Obama (1961–), US Democrat politician, president 2009–2017  |  | 
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|  |  | outlets (loanword)  / retail outlet (e.g. specializing in seconds of famous brands)  / factory outlet retail store  |  | 
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|  |  | Olympic Village  |  | 
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|  |  | George Orwell (1903-1950), British novelist, author of Animal Farm 動物農場|动物农场  and 1984  |  | 
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|  |  | Austro-Hungarian Empire 1867–1918  |  | 
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|  |  | Homer's Odyssey  |  | 
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|  |  | an Academy Award; an Oscar  |  | 
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|  |  | olympiad mathematics  / competition math  |  | 
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|  |  | Olympic Stadium  |  | 
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|  |  | Winter Paralympics  |  | 
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|  |  | Ottoman (empire)  |  | 
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|  |  | Olympic Games  |  | 
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|  |  | Oreo cookies  |  | 
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|  |  | Occam's razor  |  | 
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|  |  | Iowa, US state  |  | 
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|  |  | Olympia (Greece)  |  | 
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|  |  | Otto  |  | 
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|  |  | creole language  |  | 
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|  |  | Austin or Austen (name)  / Austin, Texas  |  | 
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|  |  | omicron (Greek letter Ο, ο)  |  | 
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|  |  | Ordovician system (geology)  |  | 
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|  |  | Auschwitz concentration camp  |  | 
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|  |  | Austria  |  | 
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|  |  | Aubrey (name)  |  | 
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|  |  | O'Connell (name)  / Daniel O'Connell (1775-1847), Irish nationalist and catholic activist  |  | 
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|  |  | Olympic Organizing Committee (abbr. to 奧組委|奥组委 )  |  | 
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|  |  | New Orleans, Louisiana  |  | 
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|  |  | the Summer Olympic Games; the Summer Olympics  |  | 
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|  |  | Austria  |  | 
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|  |  | (film industry) Oscar (Academy Award)  / CL: 屆|届 /  (name) Oscar  |  | 
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|  |  | Iowa, US state  |  | 
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|  |  | Olympus, Japanese manufacturer of cameras and optical instruments  |  | 
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|  |  | Aurelia, a hypothetical planet  |  | 
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|  |  | Omaha  |  | 
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|  |  | Iowa, US state  |  | 
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|  |  | St Augustine  / Aurelius Augustinus (354-430), theologian and Christian philosopher  / Sankt Augustin, suburb of Beuel, Bonn, Germany  |  | 
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|  |  | Orléans  |  | 
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|  |  | Onassis (name)  / Aristotle Onassis (1906-1975), Greek shipping magnate  |  | 
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|  |  | Strait of Otranto between the heel of Italy and Albania  |  | 
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|  |  | Mario (name)  |  | 
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|  |  | Austin or Austen (name)  /  Austin, Texas  /  also written 奧斯汀|奥斯汀 |  | 
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|  |  | Oudin coil  / Oudin resonator  |  | 
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|  |  | (neologism c. 2020) come on, you can do it!  |  | 
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|  |  | Augusta (place name: capital of Maine, city in Georgia etc)  |  | 
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|  |  | Oswald  |  | 
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|  |  | Auschwitz (concentration camp)  |  | 
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|  |  | ʻOumuamua (interstellar object)  |  | 
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|  |  | Augustus (name)  |  | 
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|  |  | Ottoman Empire (1299–1922)  |  | 
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|  |  | Omar (Arabic name)  |  | 
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|  |  | Marcus Aurelius (121-180), Roman Emperor  |  | 
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|  |  | Oklahoma, US state (Tw)  |  | 
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|  |  | Auschwitz (concentration camp)  |  | 
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|  |  | Orlando  |  | 
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|  |  | Jane Austen (1775-1817), English novelist  /  also written 簡·奧斯汀|简·奥斯汀 |  | 
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|  |  | Ríos (name)  |  | 
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|  |  | Albany, New York  |  | 
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|  |  | Hispaniola (Caribbean island including Haiti and the Dominican Republic)  |  | 
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|  |  | Olympic committee  |  | 
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|  |  | (metallurgy) austenite; austenitic  |  | 
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|  |  | Orion (NASA spacecraft)  |  | 
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|  |  | Othello (play by Shakespeare)  |  | 
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|  |  | ao dai (traditional Vietnamese garment)  |  | 
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|  |  | Ionian Sea between Italy and Greece  |  | 
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|  |  | Paralympic Games  |  | 
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|  |  | San Antonio, Texas  |  | 
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|  |  | Odin (god in Norse mythology)  |  | 
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|  |  | Åland Islands, Finland  |  | 
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|  |  | (loanword) oseltamivir  |  | 
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|  |  | Theodor (name)  |  | 
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|  |  | Theodor Ludwig Wiesengrund Adorno (1903-1969), German sociologist, philosopher, musicologist, and composer  |  | 
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|  |  | (bound form) Austria (abbr. for 奧地利|奥地利 )  /  (bound form) Olympics (abbr. for 奧林匹克|奥林匹克 )  |  | 
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|  |  | obscure  / mysterious  |  | 
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|  |  | omega (Greek letter Ω, ω)  / also pr. [ao4mi3jia1]  |  | 
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|  |  | Anthony and Cleopatra, 1606 tragedy by William Shakespeare 莎士比亞|莎士比亚 |  | 
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|  |  | Dior (brand name)  |  | 
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|  |  | Odysseus  |  | 
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|  |  | Aarhus, city in Denmark  |  | 
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|  |  | Fiat Palio  |  | 
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|  |  | Aeolus, Greek God of winds  |  | 
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|  |  | Osh (city in Kyrgyzstan)  |  | 
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|  |  | Lazio (region in Italy)  |  | 
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