What does FDNY stand for?

The correct definition of FDNY is "Fire Department of the City of New York." This designation accurately reflects the official name of the organization responsible for firefighting and emergency services within New York City. The FDNY is one of the largest and most renowned fire departments in the United States, and its name highlights its jurisdiction as a municipal service dedicated to protecting the residents and properties within New York City.

The context of the other options illustrates why they do not match the official title. The second choice suggests a misleading name that could imply a broader organization that focuses solely on firefighters rather than the structured governmental service that the FDNY represents. The third choice incorrectly identifies FDNY as a network rather than a fire department, which diminishes the focus on its core responsibilities. Lastly, the fourth option, referencing a "National Yearbook," is not related to firefighting services and does not pertain to the FDNY at all. Understanding the correct term helps clarify the organization's mission and authority.