officer, official

名詞 officer:

1. any person in the armed services who holds a position of authority or command
   同義詞：military officer
2. someone who is appointed or elected to an office and who holds a position of trust
   同義詞：officeholder
3. a member of a police force
   同義詞：policeman, police officer
4. a person authorized to serve in a position of authority on a vessel
   同義詞：ship's officer

動詞 officer:

1. direct or command as an officer

1. Such an act of cowardice by an officer shames his whole regiment.
   一個軍官作出如此膽怯的行為使整個團都蒙受羞辱。
2. That officer must be removed.
   那位官員必須免職。
3. The young army officer was promoted to the rank of captain.
   這個年輕軍官被提升為上尉。
4. He doubts if the officer is anybody.
   他懷疑這官員是個要人。
5. The immigration officer stamped my passport.
   移民官員在我的護照上蓋了戳。
6. His father is a customs officer.
   他父親是一位海關官員。

of.fi.cer

n.Abbr. off.（名詞）縮寫 off.
One who holds an office of authority or trust in an organization, such as a corporation or government.
公司中的高級職員：在一機構中，如公司或政府擁有權力職位或被信任的人
One who holds a commission in the armed forces.
軍官：在軍隊中擁有職位的人
A person licensed in the merchant marine as master, mate, chief engineer, or assistant engineer.
商船的高級船員：一個在商船中有執(zhí)照的船長、大副、總工程師或助理工程師
A police officer.
警官

來源：
Middle English
中古英語
from Old French officier
源自 古法語 officier
from Medieval Latin offic3rius
源自 中世紀拉丁語 offic3rius
from Latin officium [service, duty] * see office
源自 拉丁語 officium [服務，職責] *參見 office