Definition of trade verb from the Oxford Advanced American Dictionary

     

    trade

     verb
    verb
    NAmE//treɪd//
     
    Verb Forms present simple I / you / we / they trade
     
    he / she / it trades
     
    past simple traded
     
    -ing form trading
     
     
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  1. 1 [intransitive, transitive] to buy and sell things trade (in something) (with somebody) The firm openly traded in arms. Early explorers traded directly with the Native Americans. trading partners (= countries that you trade with) trade something (with somebody) Our products are now traded worldwide.
  2. 2[intransitive, transitive] trade (something) to be bought and sold, or to buy and sell something, on a stock exchange Shares were trading at under half their usual value.
  3. 3 [transitive] to exchange something that you have for something that someone else has trade (somebody) something to trade secrets/insults/jokes trade something for something She traded her posters for his DVD. trade something with somebody I wouldn't mind trading places with her for a day.
  4. 4[transitive] trade somebody (for somebody) (in sports) to exchange a player on one team for a player on another team He was traded to the Astros for a pair of rookies.
  5. Phrasal Verbstrade downtrade somethingintrade somethingoff (against/for something)trade on somethingtrade up
See the Oxford Advanced Learner's Dictionary entry: trade