1.officer的基本意思是“军官,警官”,在现代英语中也指穿特殊制服的工作人员(如海关官员等)。
2.officer还可在其前面加具体的部门或负责事项,作“公司高级职员、政府机关的官员”解。

Both commissioned and non-commissioned officers attended.有军衔的和无军衔的军官都出席了。
He dreamed of being an officer.在梦中他成了一名军官。
“Yes, officer,I saw the man approach the girl.”“是的,警官,我看见那男孩向那姑娘走去。”
A meeting will be held in the assembly hall by an officer of State.在那个礼堂里将举行一次由政府官员主持的会议。
It was said that was stated by a press officer.据说那是由一个新闻发布官声明的。
Her husband was a customs officer.她的丈夫是一名海关人员。

［同义词］   administrator, agent, bureaucrat, dignitary, executive, functionary, office-holder, official, public servant, representative