| hallmark(noun, characteristic, quality, detail, element) |
| job(noun, activity, business, study, area) |
| specialisation |
| strong suit(noun, expression, idiom, strength, ability) |
| mark(noun, nature, feature, characteristic, quality) |
| arena |
| attribute(noun, nature, feature, characteristic, quality) |
| course(noun, curriculum) |
| flavor(noun, nature, feature, quality, style) |
| gift(noun, strength, ability, skill, talent) |
| line(noun, activity, study, area, work) |
| major(noun, concentration, profession, hobby) |
| masterpiece(noun, charm, prize, treasure, ring) |
| number(noun, concentration, profession, major, hobby) |
| quirk(noun, trait, individuality, idiosyncrasy, particularity) |
| racket(noun, activity, study, area, work) |
| special(noun, delicacy, concentration, profession, major) |
| sphere(noun, area, work, rule, discipline) |
| subject(noun, area, discipline, field, theme) |
| weakness(noun, activity, art, craft, area) |