A foundation is the basis on which something is established, or the solid ground or structure on which a building stands. Synonyms: basis, base, groundwork, starting point.
What Does Foundation Mean?
Foundation comes from Latin fundamentum, meaning "base" or "bottom", via Old French fondation. In its most literal sense, a foundation is the concrete or stone base beneath a building — the part you do not see but that holds everything up. Without a sound foundation, any structure will collapse.
In figurative use, foundation describes the underlying principles, knowledge, or conditions that support something larger. "A good education is the foundation of success." "Trust is the foundation of every strong relationship." This figurative use is extremely common in academic writing, business, and everyday speech at B1 level and above.
Foundation can also refer to a charitable or non-profit organisation established for a specific purpose: "She donated to a medical research foundation." This third meaning is common in news and formal writing. All three senses share the core idea of something established firmly to support or enable everything above it.
Example Sentences
| Sentence | Usage note |
|---|---|
| The engineers inspected the foundation of the old bridge before repair work began. | literal — construction |
| A strong foundation in mathematics is essential for studying engineering. | figurative — education |
| Honesty and respect form the foundation of a healthy marriage. | figurative — relationships |
| The company's early success laid the foundation for its global expansion. | collocation: lay the foundation |
| Her years of reading gave her a solid foundation in English vocabulary. | collocation: solid foundation |
| The charity was set up as a foundation to support young artists. | organisation meaning |
| Without a foundation of trust, the peace talks quickly broke down. | without a foundation |
| This introductory course provides a foundation for more advanced study. | provide a foundation |
Word Forms
| Form | Word | Example |
|---|---|---|
| Noun (singular) | foundation | The foundation of the house needs repair. |
| Noun (plural) | foundations | They dug the foundations last week. |
| Verb (base) | found | She founded the organisation in 2005. |
| Verb (past) | founded | The school was founded in 1890. |
| Adjective | foundational | These are foundational skills every learner needs. |
| Agent noun | founder | The founder of the company retired last year. |
Common Collocations
| Collocation | Example phrase |
|---|---|
| lay the foundation | The treaty laid the foundation for lasting peace. |
| solid / strong foundation | Years of practice gave her a solid foundation in grammar. |
| build on a foundation | We need to build on the foundation of what students already know. |
| provide a foundation | This module provides a foundation for advanced research. |
| without a foundation | The claim is completely without foundation. |
| shaky / weak foundation | The argument rests on a shaky foundation of assumptions. |
| foundation course | She completed a foundation course before starting her degree. |
| charitable foundation | He set up a charitable foundation after his retirement. |
Common Mistakes
Watch Out For These Errors
This claim is without any foundations in reality. (over-pluralising in abstract use)
This claim is without any foundation in reality. (abstract noun stays singular)
She founded the foundation of her career on hard work. (verb and noun collision — awkward)
She built the foundation of her career on hard work. (use 'built' with the noun)
The foundations of mathematics is difficult. (plural subject needs plural verb — or use singular)
The foundations of mathematics are complex. / The foundation of mathematics is logical thinking.