secretary/ 'sεkrətərɪ /

1.noun [c] 
(in office) 秘书

2.noun [of organization] 
(committee member) 书记

3.noun
(manager) 干事

4.noun
(company secretary) 文书

Secretary of State (for sth)
 [BRIT] (某部)部长
Secretary of State
 [US] 国务卿
the Transport/Health Secretary
 [BRIT] 交通/卫生大臣