noun
advance training; prior training
Training or orientation conducted before starting a job, activity, or event.
新入社員は入社前に事前研修を受ける。
New employees receive advance training before joining the company.
ボランティアには事前研修が義務付けられている。
Volunteers are required to undergo prior training.
Compound of 事前 (beforehand) and 研修 (training, study).