A refrigerator is a household appliance that keeps food and drinks cold to prevent spoilage. It works by removing heat from the inside and releasing it outside, creating a cool environment. Most refrigerators have a freezer compartment for ice and frozen foods, while the main section is for fresh items like fruits, vegetables, and dairy products. Refrigerators come in various sizes and styles, including top-freezer, bottom-freezer, and side-by-side models. Many modern refrigerators also feature energy-efficient designs and smart technology, allowing users to control settings from their smartphones. This makes it easier to manage food storage and reduce energy consumption.