a member of the police who has official authority to enforce the law
Two officers stood at the crossroads, calmly directing traffic.
The officer asked to see my driver's license.
✦ Middle English: from Anglo-Norman French, from Old French oficier, based on Latin officium ‘office’.
a person in the armed forces who holds a position of authority, usually obtained by a commission
The naval officer gave the order to raise the anchor.
Cadets dream of becoming officers after graduation.
a person with an important position and responsibility in a company, government department, or other organization
The chief financial officer presented the annual report to shareholders.
As a safety officer, she checks every machine each morning.
to provide with officers or to command as an officer
Experienced captains officer the training vessel each summer.
The company officered the project with seasoned managers.