mass in WordNet English dictionary

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"
   aggregate  aggregated  aggregative  mass 
   

1. (often followed by `of') a large number or amount or extent
   "a batch of letters"; "a deal of trouble"; "a lot of money"; "he made a mint on the stock market"; "see the rest of the winners in our huge passel of photos"; "it must have cost plenty"; "a slew of journalists"; "a wad of money"
   batch  deal  flock  good deal  great deal  hatful  heap  lot  mass  mess  mickle  mint  mountain  muckle  passel  peck  pile  plenty  pot  quite a little  raft  sight  slew  spate  stack  tidy sum  wad 
   
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"
   bulk  mass  volume 
   
3. the common people generally
   "separate the warriors from the mass"; "power to the people"
   multitude  masses  mass  hoi polloi  people  the great unwashed 
   
4. the property of a body that causes it to have weight in a gravitational field
   mass 
   
5. an ill-structured collection of similar things (objects or people)
   mass 
   
6. a body of matter without definite shape
   "a huge ice mass"
   mass 
   

1. join together into a mass or collect or form a mass
   "Crowds were massing outside the palace"
   mass