dans le dictionnaire PONS
com·mon·wealth [ˈkɒmənwelθ, Am ˈkɑ:m-] SUBST
2. commonwealth form (group):
- commonwealth
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I. Com·mon·wealth [ˈkɒmənwelθ, Am ˈkɑ:m-] SUBST
Com·mon·wealth of In·de·pend·ent ˈStates SUBST
Commonwealth of Independent States, CIS SUBST (former Soviet Union; USSR)
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- GUS (ehemalige Sowjetunion; UdSSR)