| 欧 |
Ōu méng | European Union / EU |
| 欧 |
Ōu | Europe (abbr. for 欧洲) / European Union (abbr. for 欧盟) / surname Ou |
| 欧 |
ōu | ohm (abbr. for 欧姆) / euro (abbr. for 欧元) / used in transliteration / old variant of 讴 |
| 盟 |
méng | oath / pledge / union / to ally / league, a subdivision corresponding to prefecture in Inner Mongolia |