General Terms:
* Apprentice: This is the most common term, especially historically. An apprentice learns a trade under the direct supervision of a master craftsman.
* Trainee: A more modern term, used in various contexts. It can refer to someone learning a trade, a skill, or even a professional field.
* Pupil: This term emphasizes the educational aspect of learning a trade. It is often used in the context of artistic or creative trades.
More Specific Terms:
* Journeyman: A person who has completed their apprenticeship and is now working independently or under a master.
* Disciple: This term is primarily used for trades passed down through generations or in a religious context.
* Student: This term applies to those learning a trade in a more formal educational setting, like a trade school.
The best term to use depends on the specific context and the specific trade being learned.