Apprenticeship is a kind of job training that involves following and studying a master of the trade on the job instead of in school. Carpenters, masons, doctors, and many other professionals often learn their trade through apprenticeship.
The word apprenticeship comes from the Old French aprentiz meaning "someone learning" and the Anglian suffix -scip, meaning "state, condition of being." An apprenticeship is when someone is in a state or condition of learning from a master in a field. Some professions even have apprenticeship programs like the International Brotherhood of Electrical Workers where you can be assigned to apprentice, or study under a professional electrician.