役に立つ【やくにたつ】
to be helpful, to be useful
役目【やくめ】
duty, role, function
主役【しゅやく】
leading part, leading actor, leading actress
役割【やくわり】
part, assigning (allotment of) parts, role, duties
役立たず【やくたたず】
useless, deadhead
取締役【とりしまりやく】
company director, board member
三役【さんやく】
three highest ranks (wrestling, unions, etc.), three parts, three divisions
役所【やくしょ】
government office, public office
取締役会【とりしまりやくかい】
board of directors, board of directors' meeting
相談役【そうだんやく】
counselor, counsellor, adviser, advisor
監査役【かんさやく】
auditor, inspector
市役所【しやくしょ】
municipal office, council, city hall
助役【じょやく】
assistant official
役職【やくしょく】
post, official position, managerial position, executive position
区役所【くやくしょ】
ward office, council (regional)
役場【やくば】
town hall
重役【じゅうやく】
(company) director, executive, top management, important post, role with heavy responsibilities
退役【たいえき】
retiring from military service
町役場【まちやくば】
town hall
兵役【へいえき】
military service, conscription