- sum [sum; ] for n. 6 [ so͞om]n.[ME somme < MFr < L summa, fem. of summus, highest, superl. < base of super: see SUPER-]1. an amount of money [a sum paid in reparation]2. the whole amount; totality; aggregate [the sum of our experience]3. the gist or a summary of something said, done, etc.: usually in sum and substance4.a) the result obtained by adding numbers or quantities; totalb) Old-fashioned a series of numbers to be added together, or any problem in arithmeticc) the limit of the sum of the first n terms of an infinite series as n grows indefinitelyd) the set containing every element belonging to one or both of two original sets and no other elementse) in Boolean algebra, DISJUNCTION (sense 2)5. Archaic the highest degree; height; summit pl. sum6. [Uzbek sŭm] the basic monetary unit of Uzbekistan: see the table of monetary units in the Reference Supplementvt.summed, summing1. to determine the sum of by adding2. to summarize or review briefly; sum upvi.to get, or come to, a total——————in sumto put it briefly; in short——————sum up1. to add up or collect into a whole or total2. to review briefly; summarizeSYN.- SUM refers to the number or amount obtained by adding individual units [the sum of 3 and 5 is 8 ]; AMOUNT applies to the result obtained by combining all the sums, quantities, measures, etc. that are involved [we paid the full amount of the damages ]; AGGREGATE refers to the whole group or mass of individual items gathered together [the aggregate of our experiences ]; TOTAL stresses the wholeness or inclusiveness of a sum or amount [the collection reached a total of $200 ]
English World dictionary. V. Neufeldt. 2014.