ruble (chiefly US) noun
or chiefly British rouble /ˈruːbəl/ plural rubles
or chiefly British rouble /ˈruːbəl/ plural rubles
Learner's definition of RUBLE
1
[count] : the basic unit of money of Russia卢布(俄罗斯货币单位) 2
[count] : a coin representing one ruble一卢布硬币 3
the ruble technical : the value of the ruble compared with the value of the money of other countries卢布与外币的比值