W: (n) summation (summation%1:04:01::) [Related to: sum] (the arithmetic operation of summing; calculating the sum of two or more numbers) "the summation of four and three gives seven"; "four plus three equals seven"
W: (n) addition (addition%1:04:01::) [Related to: add] (the arithmetic operation of summing; calculating the sum of two or more numbers) "the summation of four and three gives seven"; "four plus three equals seven"
W: (n) tally (tally%1:04:00::) [Related to: tally] (the act of counting; reciting numbers in ascending order) "the counting continued for several hours"