Is a kitchen considered a room?

While modern kitchens in homes with open floor plans are integrated into great rooms or combined with dining areas, the kitchen is considered a separately defined room in the home. Work spaces and tools for food preparation are found in the kitchen.

Source:

Princeton Wordnet: Kitchen

https://revision3.com/technobuffalo/whats-the-apps-2011-10-05

Philadelphia at Home: Ideas for an Open Floor Plan Kitchen