officer-n; 3 Senses

Sense Number 1: military commander of some rank

Commentary: OFFICER[+authority][+military]

He was the commanding office of that platoon.
The officers on the destroyer all went down with their ship.
She is facing court martial for striking an officer.

WordNet 3.0 Sense Numbers: 1, 4

Sense Number 2: someone elected or appointed to an office

Commentary: OFFICER[+trustee][+elected/+appointed]

Two bank officers have been indicted for fraud.
Our club has elected its officers for the coming year.
John is an officer of the court.

WordNet 3.0 Sense Numbers: 2

Sense Number 3: a member of a police force

Commentary: OFFICER[+authority][+civilian]

The officer gave Mary a speeding ticket for going 40 in a school zone.
The officers used their night sticks to control the thrashing assailant.
Bill is an officer with the NYPD.

WordNet 3.0 Sense Numbers: 3