One who earns a living by trading goods or securities.
"The seasoned trader analyzed the market charts before buying new shares to earn his living."
In plain English: A trader is someone who buys and sells things, often stocks or goods, to make money from price changes.
"The local farmer went to the market to sell his produce as a trader."
Usage: A trader specifically buys and sells financial assets like stocks, bonds, or currencies rather than physical commodities such as food or clothing. Use this term to distinguish someone dealing in markets from a merchant who focuses on retailing tangible goods.
A surname.
"Many people mistakenly assume that Trader is someone who buys and sells goods, but it is actually a common surname."
The word trader comes from combining trade with the suffix -er. It originally meant a person who engages in buying and selling goods.