flock vs mass

flock

noun
  • A large number of people. 

  • A large number of animals associated together in a group; commonly used of sheep, but (dated) also used for goats, farmed animals, and a wide variety of animals. 

  • Very fine sifted woollen refuse, especially that from shearing the nap of cloths, formerly used as a coating for wallpaper to give it a velvety or clothlike appearance; also, the dust of vegetable fibre used for a similar purpose. 

  • A number of birds together in a group, such as those gathered together for the purpose of migration. 

  • Those served by a particular pastor or shepherd.herd/flock 

  • Coarse tufts of wool or cotton used in bedding. 

  • A religious congregation. 

  • A lock of wool or hair. 

verb
  • To cover a Christmas tree with artificial snow. 

  • To coat a surface with dense fibers or particles; especially, to create a dense arrangement of fibers with a desired nap. 

  • To treat a pool with chemicals to remove suspended particles. 

  • To congregate in or head towards a place in large numbers. 

mass

noun
  • A large body of individuals, especially persons. 

  • Bulk; magnitude; body; size. 

  • Excess body weight, especially in the form of muscle hypertrophy. 

  • Synonym of weight 

  • 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. 

  • The Eucharist, now especially in Roman Catholicism. 

  • Celebration of the Eucharist. 

  • The lower classes of persons. 

  • The sacrament of the Eucharist. 

  • The quantity of matter which a body contains, irrespective of its bulk or volume. It is one of four fundamental properties of matter. SI unit of mass: kilogram. 

  • A musical setting of parts of the mass. 

  • A palpable or visible abnormal globular structure; a tumor. 

  • A medicinal substance made into a cohesive, homogeneous lump, of consistency suitable for making pills; as, blue mass. 

  • The principal part; the main body. 

  • A large quantity; a sum. 

verb
  • To form or collect into a mass; to form into a collective body; to bring together into masses; to assemble. 

  • To assemble in a mass 

adj
  • Involving a mass of things; concerning a large quantity or number. 

  • Involving a mass of people; of, for, or by the masses. 

How often have the words flock and mass occurred in a corpus of books? (source: Google Ngram Viewer )