IPA: /ˈɑːrbɪtrɑːdʒər/
KK: /ˈɑːrbɪtrɑːdʒər/
A person who buys and sells assets in different markets to take advantage of price differences.
The arbitrager made a profit by buying stocks at a lower price in one market and selling them at a higher price in another.
Arbitrager → It is formed from "arbitrare" (meaning to judge or decide) and the suffix "-er" (meaning a person who). An arbitrager is a person who makes decisions or judgments, particularly in financial markets, to take advantage of price differences.
Think of someone who 'judges' ('arbitrare') the best opportunities in the market — that's why an arbitrager is a person who makes decisions based on price differences.
No commonly confused words.