alteration, analysis, anatomization, area, art, atomization, bag, business, calling, career, career building, careerism, change, craft, cup of tea, demarcation, desynonymization, differencing, differentiation, discrimination, disequalization, disjunction, distinction, distinguishment, diversification, division, field, forte, game, handicraft, individualization, individuation, itemization, lifework, line, line of business, line of work, localization, long suit, main interest, manner, metier, mission, modification, mystery, number, occupation, particularization, peculiarization, personalization, pet subject, practice, profession, pursuit, racket, segregation, separation, severalization, severance, specialism, speciality, specialty, strong point, style, technicality, thing, trade, type, variation, vocation, walk, walk of life, way, weakness, work