Dictionary.com
Thesaurus.com
Synonyms

trader

American  
[trey-der] / ˈtreɪ dər /

noun

  • traders
    plural
  1. a person who trades; a merchant or businessperson.

  2. a ship used in trade, especially foreign trade.

  3. a member of a stock exchange trading privately and not on behalf of customers.


trader British  
/ ˈtreɪdə /

noun

  1. a person who engages in trade; dealer; merchant

  2. a vessel regularly employed in foreign or coastal trade

  3. stock exchange a member who operates mainly on his or her own account rather than for customers' accounts

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of trader

First recorded in 1575–85; trade + -er 1

Explanation

A trader is a person who either buys goods and resells them, like a merchant who runs a store or a person who buys and sells stocks and bonds. The original meaning of trader was "one engaged in commerce," meaning someone who makes a living buying things and selling them at a profit. Originally, traders would literally trade goods for other goods, while today most of them trade goods for money. Financial traders work solely with money, buying and selling currency, stocks, bonds, and funds.

Keep Reading on Vocabulary.com

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

It makes the same fee whether a trader is right or wrong.

From MarketWatch Aug. 21, 2026

His father, Percy, was a Jewish-British trader; his mother, Nelly, was the daughter of middle-class Viennese Jews.

From The Wall Street Journal Aug. 14, 2026

These days, every healthcare trader has to be a part-time AI specialist just to keep up.

From The Wall Street Journal Aug. 11, 2026

It added the new operator would manage their own trader arrangements independently.

From BBC Aug. 7, 2026

Perhaps the trader and his wife saw her leave, perhaps not.

From "A Girl Named Disaster" by Nancy Farmer

The Need To Know column presents ideas from professional investors and traders every morning when the stock market is open.

From MarketWatch Aug. 21, 2026

He said traders were focused on the "daunting" amounts of global borrowing from governments and corporations, as well as increases in oil prices.

From BBC Aug. 21, 2026

The market’s quants, or process-driven traders and funds guided by algos, endured one of their worst days in recent memory on Wednesday when bets against certain stocks backfired.

From The Wall Street Journal Aug. 20, 2026

“I’ve been saying ‘bond traders can stop panicking when the Fed starts panicking,’” said Jim Bianco, president at Bianco Research.

From The Wall Street Journal Aug. 19, 2026

Word spread quickly in the small world of subprime mortgage bond creators and traders: AIG FP was now selling credit default swaps on triple-A-rated subprime bonds for a mere 0.12 percent a year.

From "The Big Short" by Michael Lewis

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training