![cross-train cross-train](https://www.tekportal.net/wp-content/uploads/2018/11/cross-train.jpg)
verb (used with object)
- to train (a worker, athlete, etc.) to be proficient at different, usually related, skills, tasks, jobs, etc.
verb (used without object)
- (of an athlete) to train in more than one sport.
- to learn different, usually related, tasks, skills, jobs, etc.