say it: EE-yoo
eu is a noun meaning "a bivalent and trivalent metallic element of the rare earth group". It carries 2 recorded senses.
a bivalent and trivalent metallic element of the rare earth group
an international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members
“he tried to take Britain into the Europen Union”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for eu come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.