day of reckoning is a noun meaning "(New Testament) day at the end of time following Armageddon when God will decree the fates of all individual humans according to the good and evil of their earthly lives". It carries 2 recorded senses.
(New Testament) day at the end of time following Armageddon when God will decree the fates of all individual humans according to the good and evil of their earthly lives
New Testament
an unpleasant or disastrous destiny
“everyone was aware of the approaching doom but was helpless to avoid it”
“that's unfortunate but it isn't the end of the world”
Definitions, synonyms and semantic relations for day of reckoning come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.