enforcement officer Police officer Security officer Officer (armed forces) Commanding officer Petty officer Chief Medical Officer Foreign Service Officer, a diplomatic...

A chief executive officer (CEO) (chief executive (CE), or managing director (MD) in the UK) is the highest officer charged with the management of an organization –...

Broadly speaking, "officer" means a commissioned officer, a non-commissioned officer (NCO), or a warrant officer. However, absent contextual qualification,...

Junior officer, company officer or company grade officer refers to the lowest operational commissioned officer category of ranks in a military or paramilitary...

A general officer is an officer of high rank in the armies, and in some nations' air and space forces, marines or naval infantry. In some usages, the...

A non-commissioned officer (NCO) is a military officer who does not hold a commission. Non-commissioned officers usually earn their position of authority...

warrant officers are sometimes classified as the most junior of the commissioned officer ranks, the most senior of the non-commissioned officer (NCO) ranks...

A chief financial officer (CFO), also known as a treasurer, is an officer of a company or organization who is assigned the primary responsibility for...

The chair, also chairman, chairwoman, or chairperson, is the presiding officer of an organized group such as a board, committee, or deliberative assembly...

senior officer is an officer of a more senior grade in military or other uniformed services. In military organisations, the term may refer to any officer above...