Definition of "officer" in English

noun

1. One who has a position of authority in a hierarchical organization, especially in military, police or government organizations.

2. A respectful term of address for an officer, especially a police officer.

3. One who holds a public office.

4. An agent or servant imparted with the ability, to some degree, to act on initiative.

5. (colloquial, military) A commissioned officer.

verb

1. (transitive) To supply with officers.

2. (transitive) To command as or like an officer.