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train
noun
°A line of connected cars or carriages pushed or pulled by one or more locomotives, especially a railroad train which travels on a set of tracks.
"We rode the train to Mumbai."
°A group of animals, vehicles, or people that follow one another in a line, such as a wagon train; a caravan or procession.
"Our party formed a train at the funeral parlor before departing for the burial."
verb
°To practice an ability.
"She trained seven hours a day to prepare for the Olympics."
°To teach a task.
"You can't train a pig to write poetry."