noun foun·da·tion \fan-ˈdā-shən\

: a usually stone or concrete structure that supports a building from underneath

: something (such as an idea, a principle, or a fact) that provides support for something

: an organization that is created and supported with money that people give in order to do something that helps society

Full Definition of FOUNDATION

:  the act of founding
:  a basis (as a tenet, principle, or axiom) upon which something stands or is supported <the foundations of geometry> <the rumor is without foundation in fact>
a :  funds given for the permanent support of an institution :  endowment
b :  an organization or institution established by endowment with provision for future maintenance
:  an underlying base or support; especially :  the whole masonry substructure of a building
a :  a body or ground upon which something is built up or overlaid
b :  a woman's supporting undergarment :  corset
c :  a cosmetic usually used as a base for makeup
foun·da·tion·al \-shnəl, -shə-nəl\ adjective
foun·da·tion·al·ly adverb
foun·da·tion·less \-shən-ləs\ adjective

Examples of FOUNDATION

  1. The inspector discovered a crack in the house's foundation.
  2. The book explains the moral foundations on which her political career was built.
  3. These problems threaten the very foundations of modern society.
  4. The scandal has shaken the government to its foundations.
  5. They established a foundation to help orphaned children.

First Known Use of FOUNDATION

14th century
FOUNDATIONAL Defined for Kids


noun foun·da·tion \fan-ˈdā-shən\

Definition of FOUNDATION for Kids

:  the support upon which something rests <the foundation of a building> <the foundations of our legal system>
:  the act of beginning or creating <He has taught here since the school's foundation.>


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