locomotive

/ˌloʊkəˈmoʊtɪv/
noun
  1. A powered rail vehicle that pulls or pushes a train.
    • Modern diesel locomotives are more efficient than their steam predecessors.
    • The old steam locomotive puffed black smoke as it pulled into the station.
    • The engineer climbed into the cab of the locomotive and started the engine.
Synonyms
adjective
  1. Relating to or used in locomotion; having the power to move or cause movement.
    • The locomotive engine of the ship was housed below deck.
    • The invention of the locomotive engine changed transportation forever.
    • Muscles are the locomotive organs of the human body.
  2. Figuratively, serving to drive or advance something forward; dynamic and energetic.
    • Her enthusiasm was the locomotive force behind the entire project.
    • The new CEO acted as a locomotive leader, pushing the company toward innovation.
    • Education is often seen as the locomotive of social progress.
Synonyms
Antonyms
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