The definition of a sum is a total amount you arrive at by adding up multiple things, or the total amount of something that exists, or the total amount of money you have.
(noun)See sum in Webster's New World College Dictionary
noun
Origin: Uzbek sŭm
the basic monetary unit of UzbekistanOrigin: ME somme < MFr < L summa, fem. of summus, highest, superl. < base of super: see super-
transitive verb summed, summing
intransitive verb
See sum in American Heritage Dictionary 4
noun
Origin:
Origin: Middle English summe
Origin: , from Old French
Origin: , from Latin summa
Origin: , from feminine of summus, highest; see uper in Indo-European roots
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