Arbitrager is a term often used to describe individuals or companies that engage in the practice of arbitrage, which involves taking advantage of price differences in different markets to make a profit. Synonyms for the word arbitrager might include arbitrageur, speculator, trader, dealer, broker, investor, or market maker. Each of these terms refers to a person or entity that is involved in the buying and selling of securities, currencies, or other assets, often with the goal of making a profit through quick trades or by exploiting market inefficiencies. Regardless of the term used, arbitragers play an important role in ensuring that markets remain efficient and prices reflect accurate valuations.