The synonym for the word "vacuum can" is "vacuum bottle" or "thermos". Vacuum can and vacuum bottle are containers that are designed to store hot or cold liquids while maintaining their temperature for an extended period. They are also known as insulated bottles and are commonly used for outdoor activities like camping, hiking, or other outdoor adventures. Insulated bottles are available in different sizes, shapes, and colors. Furthermore, these types of bottles are reusable, eco-friendly, and can be used for multiple purposes, making them a great investment. So whether you are a coffee person or a tea lover, vacuum cans are a perfect storage solution for your favorite beverage.