Aggregate demand, in economics, the total demand for goods and services in the economy during a specific time period.

In computer science, an object which is composed of multiple elements.

Aggregate series, in rocketry, a set of experimental rocket designs developed in Nazi Germany.

Construction aggregate, materials used in construction, including sand, gravel, crushed stone, slag, or recycled crushed concrete.

Aggregate (composite), in materials science, a component of a composite material used to resist compressive stress.

Aggregator, to collect messages from multiple sources, typically from RSS.

Aggregate score, in sports, refers to the sum of two scorelines when the same two teams play each over two legs (most commonly in a knockout competition).

Aggregate data, in statistics, data combined from several measurements.

In computer science (especially SQL), an aggregate function calculates a scalar result from a set or list of objects.

Total chromatic and combinatoriality, in music, the full chromatic scale of twelve equal tempered pitch.

Aggregate (Pāli, khandha; Sanskrit, skandha), in Buddhism, refers to a category of sensory experiences.