B1
to practice a sport or exercise, often in order to prepare for a sports event, or to help someone to do this
Dictionary examples:
He trained for the pizza-eating contest by eating vegetables. No wonder he lost! (0.0)
She trains for the texting championship by ignoring her family at dinner. (0.0)
He trains for the procrastination Olympics by always saying, 'I'll start tomorrow.' (0.0)
He's been training hard for the race for several weeks now. (33.7)