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.
Origin of cross-train
First recorded in 1980–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
training in two or more sports to improve performance, esp on one's main sport
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012