✓ front of a train – LOCOMOTIVE
✓ trained – TAUGHT
✓ ticket collector on a train – CONDUCTOR
✓ train watcher – BRIDESMAID
✓ underground train – SUBWAY
✓ soldiers in basic training – RECRUITS
✓ end of a train – CABOOSE
✓ front of a train – LOCOMOTIVE
✓ trained – TAUGHT
✓ ticket collector on a train – CONDUCTOR
✓ train watcher – BRIDESMAID
✓ underground train – SUBWAY
✓ soldiers in basic training – RECRUITS
✓ end of a train – CABOOSE