probation
US /proʊˈbeɪ.ʃən/
UK /proʊˈbeɪ.ʃən/

1.
the release of an offender from detention, subject to a period of good behavior under supervision
:
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He was sentenced to two years of probation instead of jail time.
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Violating the terms of probation can lead to re-imprisonment.
2.
a period of testing or assessment, for example of a new employee
:
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New employees are usually on a three-month probation period.
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After her probation, she was offered a permanent position.