1) General subject: administration, board, dep., department, ministry, office
2) Military: (как высший орган управления) headquarters
3) Law: executive administration, executive department, government department, governmental department, national department
4) Mining: department (США)
5) Business: ministerial office, the administration
6) leg.N.P. ministry (as a government department)
Универсальный русско-английский словарь. Академик.ру. 2011.