train in

Also found in: Idioms.
See: study
References in classic literature ?
This was reputed to be the fastest train in the world then.
His concerns centered on whether the INS "will assign and train sufficient numbers of dedicated staff to re view and approve the schools' applications to access SEVIS; whether SEVIS will be operational at all INS ports of entry, service centers, and consular posts; whether the INS will conduct sufficient and thorough site visits of schools applying to accept foreign students; whether the INS adequately will train school officials to use SEVIS; and whether INS will train INS inspectors and investigators adequately to use SEVIS to detect fraud.