- 1 [transitive, intransitive] to teach a person or an animal the skills for a particular job or activity; to be taught in this way train somebody/something badly trained staff train somebody/something to do something They train dogs to sniff out drugs. train (somebody) (as/in/for something) He trained as a teacher before becoming an actor. All members of the team have been trained in first aid. train to do/be something Sue is training to be a doctor.
- 2[intransitive, transitive] to prepare yourself/someone for a particular activity, especially a sport, by doing a lot of exercise; to prepare a person or an animal in this way train (for/in something) athletes training for the Olympics I train in the gym for two hours a day. train somebody/something (for/in something) She trains horses. He trains the Olympic team.
- 3[transitive] to develop a natural ability or quality so that it improves train something An expert with a trained eye will spot the difference immediately. train something to do something You can train your mind to think positively.
- 4 [transitive] train something (around/along/up, etc.) to make a plant grow in a particular direction Roses were trained around the door. Phrasal Verbstrain something at/on somebody/something
NAmE//treɪn//Verb Forms present simple I / you / we / they train
he / she / it trains
past simple trained
-ing form training