2 文書を見つけるための辞書。

• billion, 1000000000, one thousand million
• 十億
• the number that is represented as a one followed by 9 zeros
• 数字の後に0を9つ付けて表す数

• milliard
• 十億
• a billion; "in England they call one thousand million a milliard"
• 十億