American English

Definition of train noun from the Oxford Advanced American Dictionary

      

    train

     noun
    noun
    NAmE//treɪn//
     
     
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  1. 1a railroad engine pulling a number of cars, taking people and goods from one place to another to get on/off a train I like traveling by train. a passenger/commuter/freight/subway train to catch/take/get the train to London a train trip/engineer You have to change trains in Chicago. There is regular and express train service to Boston. see also gravy train, wagon train
  2. 2a number of people or animals moving in a line a camel train
  3. 3[usually singular] a series of events or actions that are connected His death set in motion a train of events that led to the outbreak of war.
  4. 4the part of a long formal dress that spreads out on the floor behind the person wearing it
  5. Idioms
    bring something in its train (formal)
     
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    to have something as a result Unemployment brings great difficulties in its train.
    in somebody's train (formal)
     
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    following behind someone In the train of the rich and famous came the journalists.
    a train of thought
     
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    the connected series of thoughts that are in your head at a particular time The phone ringing interrupted my train of thought.
See the Oxford Advanced Learner's Dictionary entry: train