WordNet sense 1 (a sum total of many heterogenous things taken together):

congeries, conglomeration

WordNet sense 2 (the whole amount):

sum, total, totality

WordNet sense 3 (having or involving or consisting of more than one part or entity or individual):

multiple

WordNet sense 4 (gather in a mass, sum, or whole):

combine, combine

WordNet sense 5 (gathered or tending to gather into a mass or whole):

mass, aggregated, aggregative

WordNet sense 6 (forming a whole or aggregate):

collective