What is another word for "intern"?

Roget's Thesaurus (1911) lists these synonyms for "intern": abdomen, abdominal, abecedarian, alphabetarian, alumnus, amateur, and, apostle, apprentice, articled, auditor, backbone, beginner, belly, bosom, breast, catechumen, cave, center, chela, circumscribe, class, clerk, coeliac, college, concavity, condisciple, contents, debutant, deep, disciple, domestic, eleve, endemic, entrails, family, fellow-commoner, follower, form, fresh.