feather

model

sample, specimen

bracket, bunch, category, division, family, grade, group, grouping, lot, persuasion, rank(s), set, suite

apparel, attire, costume, duds, habiliment(s), rags, raiment, rig, rigging, threads, toggery, togs, vestiary, vesture, wear

angle, attitude, mind-set, outlook, perspective, slant, standpoint, viewpoint

emotion, feeling, heart, passion, sentiment

strain

belief, conviction, judgment (or judgement), mind, opinion

expression, tone, vein

character, disposition, identity, individuality, makeup, mettle, personality, selfhood, self-identity, temper, temperament

responsiveness, sensibility, sensitiveness, sensitivity