Synonyms for Sum Up (same or very similar meaning)
WordNet sense 1 (be a summary of):
sum, summarize, summariseWordNet sense 2 (give a summary (of)):
resume, resumeWordNet sense 3 (determine the sum of):
add, tally, tot, total, summate, add up, tote up, tot up, add togetherFrom the ODE community, based on WordNetadd/edit