noun A line of connected railway carriages pulled by an engine, used to carry passengers or freight.
- The freight train rumbled slowly past the station, carrying dozens of heavy containers.
- We caught the early train to London.
- The train was delayed by twenty minutes.
noun A long, flowing part of a garment, especially a wedding dress, that trails along the ground.
- Two bridesmaids carefully lifted the train of the dress as she walked down the aisle.
- The queen's robe had a heavy velvet train that swept across the floor.
- Her wedding dress had a train several meters long.
noun A connected series of events, thoughts, or vehicles.
- A train of camels crossed the desert, led by an old guide.
- One bad decision set off a train of events that nobody had planned.
- He lost his train of thought halfway through the speech.
verb To teach someone a skill through instruction and practice.
- The company will train all its new staff to use the booking system.
- She trains new recruits at the fire academy.
- He trained for months before running the marathon.
verb To feed data into a computer program so it learns to perform a task.
- Engineers train the program on thousands of recorded phone calls so it can recognize speech.
- You can train a spam filter by marking unwanted messages as junk.
- The model was trained on millions of images.
