(Brother), a name applied generally to members of religious brotherhoods, but which in its strict significance indicated an order lower than that of priest, the latter being called "father," while they differed from monks in that they travelled about, whereas the monk remained secluded in his monastery; in the 13th century arose the Grey Friars or Franciscans, the Black Friars or Dominicans, the White Friars or Carmelites, Augustinians or Austin Friars, and later the Crutched Friars or Trinitarians.