noun

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 substance
4. 1. the result obtained by adding numbers or quantities; total
   2. Old-fashioned a series of numbers to be added together, or any problem in arithmetic
   3. the limit of the sum of the first n terms of an infinite series as n grows indefinitely
   4. the set containing every element belonging to one or both of two original sets and no other elements
   5. in Boolean algebra, disjunction (sense )
5. Archaic the highest degree; height; summit
6. pl. sum

   Etymology: Uzbek sŭm

   the basic monetary unit of Uzbekistan

Etymology: ME somme < MFr < L summa, fem. of summus, highest, superl. < base of super: see super-

transitive verb summed, summing sum′·ming

1. to determine the sum of by adding
2. to summarize or review briefly; sum up

intransitive verb