What does concept mean?
A concept is an abstract idea or general notion — a mental construct that captures what a category of things, a principle, or an underlying theme has in common. Concepts range from the concrete to the highly theoretical: 'chair' is a concept as much as 'justice', 'gravity', or 'supply and demand'. The word functions almost exclusively as a noun and carries a neutral-to-formal register, making it equally at home in academic writing, business strategy, and ordinary conversation, though it tends to sound more considered and structured than the looser word 'idea'. Common patterns include phrases such as 'the concept of freedom', 'a fundamental concept', and 'to grasp a concept'. Related forms include the adjective 'conceptual' and the verbs 'conceive' and 'conceptualize', all tracing back to the same Latin root meaning 'to take in or conceive'. Because so much of human knowledge is organized around concepts — scientific, legal, moral, artistic — the word remains indispensable for discussing how we think.
nounAn abstract idea or general notion; a mental representation of something, especially a class of things or a principle underlying a subject.
- An abstract idea, general notion, or mental construct representing a class of things or a principle (e.g. 'the concept of freedom').
- In logic and philosophy: a general idea or thought corresponding to a class of objects or events.
- (Less common) A plan or scheme, especially in advertising and design ('the campaign's central concept').
"The concept of justice has been debated by philosophers for centuries."
"The concept of zero was one of the most important mathematical breakthroughs in history."
"The design team presented three concepts for the new logo before settling on a final direction."
Standard regular plural; no irregularities.
"The textbook introduces several key concepts in its opening chapter."
Every invention you've ever used — from the wheel to the smartphone — existed first as nothing more than a concept in someone's mind.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of concept
The English noun 'concept' derives from the Latin 'conceptum', the neuter past participle of 'concipere' ('to conceive, take in'), formed from 'com-' ('together') and 'capere' ('to take'). It entered English in the mid-16th century via Latin philosophical usage, initially appearing chiefly in scholastic and logical writing before broadening into general use. Its cognates include 'conceive' and 'conception', which came through Old French from the same Latin verb, and the parallel formation 'percept', built on the related root of 'perceive'.
Related word forms
How concept is actually used
Register is neutral to formal; 'concept' appears freely in academic, business, and everyday contexts. It is slightly more formal than 'idea' and often implies a more structured, systematic, or theoretical notion. In British English the plural 'concepts' is standard; there are no notable regional differences in meaning.
Easily confused with concept
A conception is the act or process of forming an idea (or conceiving a child), while a concept is the resulting abstract idea itself.