definition of
reckoning

[1] #1 reckoning n. [calculation, computation, figuring] problem solving that involves numbers or quantities. wn

[2] #2 reckoning n. [tally] a bill for an amount due. wn

[3] #3 reckoning n. [count, counting, numeration, enumeration, tally] the act of counting; reciting numbers in ascending order; "the counting continued for several hours". wn