Foundations are the solid base or support that holds up a structure, like a house or a building. They are usually made of concrete and are buried underground to provide stability. A strong foundation ensures that the building can withstand various forces, such as wind and earthquakes, keeping it safe for everyone inside. In a broader sense, foundations can also refer to the underlying principles or ideas that support a concept or organization. For example, the Bill and Melinda Gates Foundation focuses on improving global health and education. Just like a physical foundation, these principles help sustain and guide the work being done.