1the action or process of calculating or estimating something:the sixth, or by another reckoning eleventh, Earl of Mar
a person’s opinion or judgement:by ancient reckoning, bacteria are plants
[count noun] archaic a bill or account, or its settlement.
2the avenging or punishing of past mistakes or misdeeds:the fear of being brought to reckoning [count noun]:there will be a terrible reckoning
3 (the reckoning) contention for a place in a team or among the winners of a contest:he has hit the sort of form which could thrust him into the reckoning