person appointed to command others in the army, navy, air force, etc.
person with a position of authority of trust, e.g. in the government or a society, etc.
"an officer is responsible for the lives of his men"
"he is an officer of the court"
"the club elected its officers for the coming year"
"it was an accident, officer"
"he is the officer in charge of the ship's engines"
I give you my word of honour as an officer and a gentleman.
出自： E. O