noun

• The act of collecting together, of aggregating.
• The state of being collected into a mass, assemblage, or (aggregated) sum.
• A collection of particulars; an aggregate.
• (networking) Summarizing multiple routes into one route.
• (epidemiology) The majority of the parasite population concentrated into a minority of the host population.
• (object-oriented programming) Kind of object composition which does not imply ownership.
• (linguistics) A component of natural language generation that entails combining syntactic elements.