What is the full name of YVR in terms of its function?

The full name of YVR is Vancouver International Airport, which reflects its status as a major international gateway serving the city of Vancouver in British Columbia, Canada. This airport is not only one of the busiest in the country but also a significant hub for both domestic and international travel. It offers a wide array of services and facilities that meet the needs of millions of passengers each year, making it a vital transportation link for the region.

In contrast, the other choices represent either fictitious or lesser-known airports that do not align with the widely recognized designation "YVR." For instance, Yellowknife International Airport and Yukon International Airport refer to other specific airports in different regions of Canada, while Yukon Valley Regional Airport does not correspond to a valid airport known in aviation. This clarity helps to identify YVR uniquely as Vancouver International Airport, underscoring its importance within the context of air travel in Canada.