Synonyms of probationer

1 Syllable
rook, heel
2 Syllables
entrant, student, tyro, learners, pupil, learner, starter, plebe, greenhorn, greenie, flunky, rookie
3 Syllables
amateurs, novice, amateur, smatterer, beginner, beginners, tenderfoot, neophyte, newcomer, putterer
4 Syllables
apprentice, catechumens, novitiate, catechumen