schema

American  

[skee-muh] / ˈski mə /

noun

plural

schemata, schemas

1. a diagram, plan, or scheme.

   Synonyms:

   model, framework, outline

2. an underlying organizational pattern or structure; conceptual framework.

   A schema provides the basis by which someone relates to the events they experience.

3. (in Kantian epistemology) a concept, similar to a universal but limited to phenomenal knowledge, by which an object of knowledge or an idea of pure reason may be apprehended.

---

schema British  

/ ˈskiːmə /

noun

1. a plan, diagram, or scheme

2. (in the philosophy of Kant) a rule or principle that enables the understanding to apply its categories and unify experience

   universal succession is the schema of causality

3. psychol a mental model of aspects of the world or of the self that is structured in such a way as to facilitate the processes of cognition and perception

4. logic an expression using metavariables that may be replaced by object language expressions to yield a well-formed formula. Thus A = A is an axiom schema for identity, representing the infinite number of axioms, x = x, y = y, z = z, etc

---

Etymology

Origin of schema

First recorded in 1790–1800; from Greek schêma “form, shape, appearance”

Explanation

If you were just commissioned to modernize your town's library, the first thing you'll make is a schema: an outline of your plan for reinventing libraries. Schema sounds like scheme, but they have different nuances. You scheme to snatch a cookie from the jar. A schema is more of a master plan. It can also just be an organized vision. If you have a master concept about how the world works, that's your world organization schema. Someone with an insanely big idea about how to change the world has "a grand schema." Now she just needs to make a practical schema for actually making that change.

Example Sentences

In the more pessimistic schema, Tesla succumbs to competition and margin pressure, the market disregards Optimus in valuations and Robotaxi has slower growth expected.

From MarketWatch • Dec. 8, 2025

Chess players remember the location of pieces on the board using schema, a way of organizing new information in the brain.

From Science Daily • May 1, 2024

“You have this very tight, well worn schema that we are adult colleagues who are going out to talk,” she said.

From Los Angeles Times • Apr. 30, 2024

I had the idea of developing a similar dialogue schema and applying it to sales and marketing processes.

From Slate • Oct. 28, 2023

But then who was the Jack that loved and buried Sophie; was he just another version in the schema, or the true soul, or could he have been both?

From "Native Speaker" by Chang-rae Lee