Officiary is a rarely used word that is derived from the Latin word 'officium'. The term officiary is used to describe someone who is associated with a particular office, position, or duty. While officiary is the most direct synonym to the term, there are other words that can also be used interchangeably. These include terms such as official, functionary, officer, bureaucrat, administrator, executive, and marshal. These words denote individuals that hold a specific rank, position, or authority within an organization. The use of these synonyms gives a broader scope to the term officiary, allowing for more comprehensive communication.