People always hang out in the kitchen at a party because a kitchen is where the food is. Restaurants have kitchens too, but only the kitchen staff hangs out in there. A kitchen is a room that’s meant for cooking.
Whether you're making a four-course meal or microwave popcorn, the kitchen is where the magic happens. Schools, hospitals, and restaurants have kitchens. The word kitchen can also be used as an adjective. Guess where the kitchen cabinets are? If someone says you’ve packed everything but the kitchen sink, your suitcase is overflowing. And you should totally go back and get that sink. The Old English root of kitchen is from the Vulgar Latin cocina, rooted in coquere, "cook."