flock vs group

flock

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

  • 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. 

noun
  • 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 large number of people. 

  • 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. 

group

verb
  • To come together to form a group. 

  • To put together to form a group. 

noun
  • A column in the periodic table of chemical elements. 

  • An element of an espresso machine from which hot water pours into the portafilter. 

  • A (usually small) group of people who perform music together. 

  • An air force formation. 

  • A number of users with the same rights with respect to accession, modification, and execution of files, computers and peripherals. 

  • A number of things or persons being in some relation to one another. 

  • A subset of a culture or of a society. 

  • A functional group. 

  • A small number (up to about fifty) of galaxies that are near each other. 

  • A collection of formations or rock strata. 

  • A number of eighth, sixteenth, etc., notes joined at the stems; sometimes rather indefinitely applied to any ornament made up of a few short notes. 

  • A set with an associative binary operation, under which there exists an identity element, and such that each element has an inverse. 

  • A commercial organization. 

  • A set of teams playing each other in the same division, while not during the same period playing any teams that belong to other sets in the division. 

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