| undertaking(noun, activity, action, trouble, work) |
| bailiwick(noun, work, concern, responsibility, sphere) |
| game(noun, activity, movement, work, force) |
| practice(noun, company, work, job, employment) |
| preserve(noun, work, concern, competence) |
| topic(noun, trouble, worry, concern, point) |
| activity(noun, activity, area, movement, work) |
| dealing(noun, trade, conduct, exchange, market) |
| negotiation(noun, activity, agreement, contract, accord) |
| office(noun, organization, territory, state, action) |
| trading(noun, adjective, action, trade, industry) |
| house(noun, organization, activity, company, work) |
| merchandising(noun, trade, market, industry, commerce) |
| partnership(noun, organization, company, firm, association) |
| patronage(noun, trade, commerce, audience, transactions) |
| set-up(noun, company, operation, commerce) |
| trafficking(noun, activity, trade, commerce) |
| transactions(noun, communication, trade, trial, contact) |
| worry(noun, trouble, difficulty, thing, burden) |
| group(noun, company, body, firm, society) |