Skip to main content
first principles

first principles

7 5.8
Basic ideas and facts that form the foundation of a subject
  • noun
  • Formal
translation icon : principios fundamentales
  • The lecturer explained the first principles that underpin classical physics.
  • begin with first principles
  • based on first principles

And so we can bring in additional first principles to account for this.

Autoplay Next

Examples

  • Commit yourself to uphold the first principles and values.

    Academic text (2008)
  • Self-determination of all peoples is one of the very first principles in the UN Charter.

    Blog text (17)
  • And so we can bring in additional first principles to account for this.

  • You have broken the first principle of our training.

  • If you hold such views, you need to be taught the first principles of the truth.

    Blog text (10)
  • But it is also a time for reflection about our first principles.

    Academic text (1995)
  • Indeed, the study of economics provides the first principles here.

    Academic text (1997)
  • Surely, a first principle of scholarly work is to obtain all the available facts.

    Academic text (1991)
  • The pretest measured what students retained from their first principles course, wherever it was taken.

    Academic text (1997)
  • So, these first principles direct us indiscriminately toward the well-being and flourishing of ourselves and everyone else.

    Academic text (2008)

Synonyms

foundation
vsfirst principles
182 3.5

The basic ideas and facts that support a belief, plan, or system

is about original principles that underlie and generate other concepts
basic principle
vsfirst principles
22 2.7

An important rule or idea that forms the base for other knowledge

emphasizes root-level truths that serve as sources for other ideas
bedrock
vsfirst principles
18 4.2

The basic principles that support a system, idea, or group

is stronger, meaning the original truths from which systems are built
fundamental principle
vsfirst principles
14 4.1

A basic rule that other ideas come from

is deeper, focusing on root truths from which all others derive
basics
vsfirst principles
8 1.0

Important facts or skills you learn first in a subject

is more abstract, pointing to root truths rather than learner steps
ABC
vsfirst principles
  • Informal
5 1.0

The simple first things you must learn about a subject

is the formal concept of deep primary truths rather than an informal list
fundamentals
vsfirst principles
  • Specialized
3.0

Basic ideas you learn first when studying a subject

is more about deep root truths that explain everything else
rudiments
vsfirst principles
5.1

Basic facts or skills you learn first in a subject

focuses on foundational truths rather than just initial learning steps

How Fundamental

first principles
  • Formal
7 5.8
bedrock
18 4.2
axiom
30 7.5
principle
633 3.8
rule
1.0
detail
1.0

Surface Forms

Morphology

first + principle

The meaning 'basic, foundational concepts' is directly built from 'first' (primary, earliest or most important) and 'principle' (foundational rule), so a learner who knows both words can infer the combined sense. This compositional pattern is common across languages and follows standard adjective + noun semantics, making the expression readily understandable to a B1 learner.

Etymology

First principles paints a simple picture: you go back to the very first blocks or rules, the first 'principles', and start building from them. That's why it means 'basic ideas' that everything else is built from.