Apprenticeship

noun

1. The service or legal condition of an apprentice; the method or process of gaining knowledge of some trade, art, or profession from the instruction of a master.
2. The term during which one is an apprentice.
3. The service or condition of an apprentice; the state in which a person is gaining instruction in a trade or art, under legal agreement.
4. The time an apprentice is serving (sometimes seven years, as from the age of fourteen to twenty-one).
5. the condition of, or the time served by, an apprentice