the solid base, usually made of concrete, that supports a building or other structure and keeps it stable
The workers waited for the concrete foundation to harden before they started laying bricks.
During the earthquake, the old cabin shifted because its wooden foundation was weak.
✦ From Middle English fundacioun, from Old French fondation, from Latin fundātiō meaning “a founding, laying of a base,” from fundāre “to lay the base”
the basic principle, idea, or fact that something is built on or starts from
Honesty is the foundation of a strong friendship.
Mathematics forms the foundation for many modern technologies.
a skin-colored cosmetic cream or powder spread over the face to create an even tone before applying other makeup
She applied a light layer of foundation to cover her freckles.
The actor’s heavy stage lights required a thicker foundation.
an organization that is created and given money to support a particular cause, study, or charity
The medical foundation donated new equipment to the children’s hospital.
He set up a private foundation to fund scholarships for local students.
