trainer
🇺🇸
/ˈtreɪnər/
🇬🇧
/ˈtreɪnə(r)/
A type of athletic shoe designed for comfort and support during physical activities.
The athlete chose a pair of trainers for the marathon.
A person who teaches and helps to develop the skills of others, often in a professional or athletic setting.
The boxer relied on his trainer's expertise to improve his technique.