The phrase "to attend training" means to participate in a program or course that is designed to teach new skills, provide information, and improve one's ability to perform a particular task. Full definition
Maybe there are people who attended training sessions at the same time you did who would like to be a member of your leadership circle and help get the group started. (nacac.org)
You may attend training classes at any sales office location any time which makes attendance far easier than a restricted schedule. (foxroachcareers.com)
At least 85 % of a school's staff must attend the training in order to achieve whole school transformation. (aplusla.org)