Final answer:
The secretary, mailroom attendant, and your coworkers can all be referred to as your colleagues, who are part of your professional circle that collaborates to achieve the organization's goals.
Step-by-step explanation:
In a professional setting, the secretary, the mailroom attendant, and your coworkers would be referred to as your colleagues. These are the individuals you work alongside to complete tasks within an organization. Although they may hold different positions, they are part of the same overarching team with whom you collaborate to achieve common goals.
It is important to learn about the type of work others do, understand their roles, and discover how these roles fit into the organization's structure. Recognizing the contributions of each member is essential for a harmonious and efficient workplace. Whether you are working on a project, interacting in meetings, or completing day-to-day tasks, your colleagues play a critical role in the success of the organization. While terms like team or staff might also be appropriate in some contexts, 'colleagues' is the term that encompasses all members of a workgroup regardless of their hierarchical position.