A person who is undergoing a trial period in a new job or position to assess their suitability. The probationer was eager to prove her skills during her first month at the company.
A person who is on probation, especially a criminal who is released from detention under supervision. The probationer must meet with his officer weekly as part of the terms of his release.
A novice in a religious order, or a candidate for the ministry, undergoing a period of probation before taking vows or being ordained. The probationer spent a year in contemplative study before his first vows.