underlying principle

Meanings

1. 1nouncountableformal

   A basic rule, idea, or truth that supports a system or explains how something works.

   Grammar: Countable and often used in the plural: the underlying principles of the theory. It usually takes 'of' before the thing it supports.

   Patterns

   • the underlying principle of something
   • the underlying principles behind something
   • understand the underlying principle

   The underlying principle of the law is that everyone is equal.

   Students should learn the underlying principles, not just memorize facts.

   The underlying principle behind the design is simplicity.

2. 2nouncountableformal

   A fundamental rule that guides behavior or decisions in an organization or activity.

   Grammar: Often plural and used with 'of' or 'behind': the underlying principles of good teaching.

   Patterns

   • the underlying principles of something
   • follow the underlying principles

   The company's underlying principles include honesty and fairness.

   The coach explained the underlying principles of teamwork.

Word forms

Common combinations

the underlying principle of

The underlying principle of the method is to save energy.

the underlying principles behind

We need to examine the underlying principles behind the policy.

a basic underlying principle

A basic underlying principle of economics is supply and demand.

understand the underlying principle

Once you understand the underlying principle, the details are easier.

Synonyms and how they differ

fundamental principle

Very close in meaning; 'fundamental' emphasizes importance, while 'underlying' emphasizes that it lies beneath the surface.

basic rule

Less formal and often used for practical rules rather than theoretical ideas.

foundation

A broader noun for the base of something; it does not always suggest a rule or idea.

Opposites

Word family

underlie verb

To be the cause or basis of something.

underlying adjective

Existing beneath the surface; basic but not obvious.

principle noun

A basic rule or belief that guides behavior.

principled adjective

Acting according to strong moral beliefs.

Commonly confused: underlying principle or principal?

Practice

Make it your own

Write a sentence using “underlying principle”, then check it and compare it with the examples above.

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