to listen to the pronunciation. to listen to the pronunciation.| onsen; Japanese hot spring onsen  |
| Oolong (black dragon tea) uuron cha  |
| orange orenji  |
| orange juice orenji juusu  |
| order (a request by a customer for a company to supply goods or for a meal in a restaurant) chuumon  |
| origami origami  |
| Osaka Oosaka  |
| osechi (traditional Japanese New Year foods) osechi ryouri  Kanji translation: ryouri: cuisine  |
| otaku otaku  |
| overcast, cloudy kumori  |
| oyako-don (a bowl of rice topped with egg and chicken) oyako-don  |