Final answer:
The one-word summary for a place where people organize and coordinate activities to achieve a goal is 'Institution'.
Step-by-step explanation:
The statement "a place where people come together, organize and coordinate activity to achieve some specific goal" can be summarized in one word as an Institution.
An institution is an organization with a set of rules and practices that inform its members about their relationships with one another and how they should interact. These social structures help organize society as a whole by providing a function, often creating conflict, and both creating and challenging meaning for their members and beyond.