Sum

n. 1 total resulting from addition. 2 amount of money (a large sum). 3 a arithmetical problem. b (esp. pl.)colloq. arithmetic work, esp. elementary. v. (mm) find the sum of. n in sum in brief. sum up 1 (esp. of a judge) give a summingup. 2 form or express an opinion of (a person. situation. etc.). 3 summarize. [Latin summa]