trader
n.-
1 finance or commerce (n.) B1 Intermediatesomeone who buys and sells things like stocks, currencies, or products to make a profit.
an individual who executes the purchase and sale of financial instruments or physical commodities, either for their own account or on behalf of a firm.
ExampleThe currency trader watched the screens closely as the value of the dollar changed.
ExampleProfessional traders often rely on complex algorithms to identify small price discrepancies in the global energy markets before their competitors can react.
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2 a local business owner (n.) B1 Intermediate British Englisha person who runs a small business or sells goods in a market.
a person engaged in retail or wholesale trade, often used in the context of small-scale or local commerce.
ExampleLocal traders are worried that the new shopping mall will take away their customers.
ExampleThe association of independent traders petitioned the council to reduce parking fees in the town centre to encourage more foot traffic for foot traffic.
From trade + -er.