noun

 

lump a solid lump with no clear shape

The sauce was now a sticky mass in the bottom of the pan.

 

amount in physics, the amount of substance that something contains

One litre of water has a mass of one kilogram.

 

adjective

 

involving a lot of people

mass destruction/unemployment

 

verb

 

to come together somewhere in large numbers, or make people or things do this

Over 20,000 demonstrators massed in the town's main square.

 

noun

 

a religious ceremony in some Christian churches in which people eat bread and drink wine

to go to Mass