Meaning: Base or groundwork:
* The architect laid a strong foundation for the building, ensuring its stability for years to come.
* A good education provides a solid foundation for future success.
* The team's victory was built on a foundation of hard work and dedication.
Meaning: An organization that gives money to help other organizations:
* The Gates Foundation has donated millions of dollars to fight poverty and disease.
* The charity relies on donations from the public to build its foundation and continue its work.
* The foundation was established with the aim of promoting scientific research.
Meaning: The bottom layer of something:
* The makeup artist applied a layer of foundation to create a smooth, even canvas for her work.
* The foundation of the cake was a layer of sponge, topped with a creamy frosting.
* The house had a foundation of concrete, which provided a sturdy base for the structure.