to release (someone) temporarily or permanently from planned or impending punishment, pain, or difficulty.
example: Just two years ago, the new Constitution notwithstanding, an Afghan man was sentenced to death for converting – and was only reprieved, on grounds of insanity, after a massive international campaign.
definition 1: a temporary or permanent release from planned punishment.
example: He was to be executed the next morning but received a reprieve when new evidence was uncovered.
definition 2: a document ordering such a release.
definition 3: a temporary exemption, as from pain or difficulty.
example: Only this year, taxpayers get a slight reprieve: The deadline was extended until midnight on Monday the 18th.