instructor

Sherlock Holmes, who has himself, as an amateur, shown some talent in the detective line, and who, with such instructors, may hope in time to attain to some degree of their skill.

Then in the long days on board ship, when the vessel, gliding on with security over the azure sea, required no care but the hand of the helmsman, thanks to the favorable winds that swelled her sails, Edmond, with a chart in his hand, became the instructor of Jacopo, as the poor Abbé Faria had been his tutor.

Some time after, it was stated that the Comte de Morcerf (this was the name he bore) had entered the service of Ali Pasha with the rank of instructor-general.

I would constantly apologize to the instructor, feeling a burning sense of shame every time I tumbled clumsily onto my padded knees.