THESAURUS
brethren
assembly, aunt, auntie, blood brother, brother, bub, bubba, bud, buddy, churchgoers, class, congregation, country cousin, cousin, cousin once removed, cousin twice removed, daughter, father, first cousin, flock, fold, foster brother, frater, grandnephew, grandniece, granduncle, great-aunt, great-uncle, half brother, kid brother, laity, laymen, minyan, mother, nephew, niece, nonclerics, nonordained persons, nuncle, nunks, nunky, parish, parishioners, people, second cousin, seculars, sheep, sis, sissy, sister, sister-german, sistern, society, son, stepbrother, stepsister, unc, uncle, uncs, uterine brother
ROGET THESAURUS
brethren
Laity
N
laity, flock, fold, congregation, assembly,
brethren, people, society, temporality, secularization, layman, civilian, parishioner, catechumen, secularist, secular, lay, laical, civil, temporal, profane.