Final answer:
A collection of positions similar enough to share a common title is referred to as a job.
Step-by-step explanation:
A collection of positions similar enough to one another to share a common title is referred to as a job. This term is commonly used to describe a set of roles or tasks that have similar characteristics and fall under the same title or category. For example, different positions such as teacher, accountant, and nurse can all be considered jobs because they share the common characteristic of being professions.