Europe (abbr. for 歐洲|欧洲[Ou1 zhou1]); European Union (abbr. for 歐盟|欧盟[Ou1 meng2]); surname Ou

ohm (abbr. for 歐姆|欧姆[ou1 mu3]); euro (abbr. for 歐元|欧元[ou1 yuan2]); used in transliteration; old variant of 謳|讴[ou1]

Owen (name); Erwin (name); Irvine, California

euro (currency)

Romeo (name)

European (person)

Eastern Europe

Western Europe

north Europe; Scandinavia

Leonhard Euler (1707–1783), Swiss mathematician

European Union; EU

Casio

two-character surname Ouyang

Owens (name)

(loanword) ohm

Sino-European

Central Europe

see 歐亞|欧亚[Ou1 Ya4]

(old) waiter (loanword from "boy"); attendant

Southern Europe

to go through a difficult and protracted process in withdrawing from the EU, as in the case of Brexit (a play on 脫歐|脱欧[tuo1 Ou1])

(coll.) okay (loanword from "over")

Europe and Asia; Eurasia

Eugene (name)

UEFA Champions League

euro cent

European-style bread; (esp.) sourdough bread (abbr. for 歐洲麵包|欧洲面包[Ou1 zhou1 mian4 bao1])

Opel (car brand)

(female usage) older sister (loanword from Korean "eonni")

(female usage) older brother (loanword from Korean "oppa"); male friend

in the European style; Euclidean

medlar (Mespilus germanica)

common hazel (tree) (Corylus avellana)

Euclid; abbr. for 歐幾里得|欧几里得

(Internet slang) very good luck (esp. in games)

opal (Sanskrit: upala)

(ACG) breasts (loanword from Japanese "oppai")

(economics) (derog.) PIGS (Portugal, Italy, Greece and Spain); PIIGS (Portugal, Italy, Ireland, Greece and Spain)

Europe and America; the West

parsley (Petroselinum sativum)

(loanword) au lait; with milk

continental Europe

(bird species of China) stock dove (Columba oenas)

mu (Greek letter Μμ)

US and EU; America-Europe

to withdraw from the European Union; abbr. for 脫離歐盟|脱离欧盟

Indo-European (person)

Indo-European (language)

Indo-European (language)