Definition of mass:

part of speech: noun

The celebration of the Eucharist in the R. Cath. Ch.; the sacrifice of the mass, or the celebration of the Lord's Supper in the R. Cath. Ch.; high mass, that which is sung or chanted, low mass being only read.

part of speech: verb

To form into a mass; to form into a collective body; to assemble.

part of speech: noun

A body or lump; a large quantity; a heap; the quantity of matter in any body.

Usage examples:

• Put in a bunch of sweet- herbs cut small, and stew the whole very slowly till it has dissolved into a mass in "".

• It was like a midnight mass Alexander Irvine in "My Lady of the Chimney Corner".

• Soon the balloon lay a flat mass where it had struck. Ralph Bonehill in "Leo the Circus Boy".

• Never mind; now we'll go to sleep till it's time for Mass Rose Macaulay in "The Furnace".