Mass

1. The quantity of matter which a body contains, irrespective of its bulk or volume.
2. Bulk; magnitude; body; size.
3. A medicinal substance made into a cohesive, homogeneous lump, of consistency suitable for making pills; as, blue mass.
4. The principal part; the main body.
5. A quantity of matter cohering together so as to make one body, or an aggregation of particles or things which collectively make one body or quantity, usually of considerable size; as, a mass of ore, metal, sand, or water.
6. The portions of the Mass usually set to music, considered as a musical composition; -- namely, the Kyrie, the Gloria, the Credo, the Sanctus, and the Agnus Dei, besides sometimes an Offertory and the Benedictus.
7. To form or collect into a mass; to form into a collective body; to bring together into masses; to assemble.
8. To celebrate Mass.
9. A large quantity; a sum.
10. The sacrifice in the sacrament of the Eucharist, or the consecration and oblation of the host.