1 : the property of a body that causes it to have weight in a gravitational field
2 : the property of something that is great in magnitude; "it is cheaper to buy it in bulk"; "he received a mass of correspondence"; "the volume of exports"
adjectif satellite
1 : formed of separate units gathered into a mass or whole; "aggregate expenses include expenses of all divisions combined for the entire year"; "the aggregated amount of indebtedness"
verbe
1 : join together into a mass or collect or form a mass