billion [billions](a thousand million (1,000,000,000); a milliard) noun [UK: ˈbɪ.lɪəŋ] [US: ˈbɪ.ljən]A billion adults are illiterate. = Un miliardo di adulti sono analfabeti.
multimiliardoadjective
multibillion(having a value of several billion) adjective [UK: ˌmʌlt.i.ˈbɪ.ljən] [US: ˌmʌlt.i.ˈbɪ.ljən]