arbitrage /ˈɑɚbəˌtrɑːʒ/ noun Learner's definition of ARBITRAGE
[noncount] business
: the practice of buying something (such as foreign money, gold, etc.) in one place and selling it almost immediately in another place where it is worth more套利；套购；套汇
— arbitrageur
/ˌɑɚbəˌtrɑːˈʒɚ/ also US arbitrager /ˈɑɚbəˌtrɑːʒɚ/ noun, plural arbitrageurs also US arbitragers [count]