← Dictionary

principle

/ˈprɪnsəpəl/
IELTSAcademic
noun
  1. 1.

    A fundamental truth or rule that guides behavior or reasoning.

    • The committee agreed in principle to the proposal.
    • She refused to lie on principle.
    • This policy is based on a sound principle.
  2. 2.

    A underlying idea or general law, such as a scientific principle.

    • The principle of fairness is essential here.
    • Work on the main principle of the design.

Adinary Nuance

Distinguish 'principle' from 'rule' (fixed instruction) and 'ideal' (aspirational standard). Use 'principle' for moral or scientific foundations, not everyday regulations.

In other languages

Spanish
Principio o norma fundamental
Japanese
原理、基本的な真則
Korean
원칙, 기본 규칙
Vietnamese
Nguyên tắc, quy tắc cơ bản
Chinese
原则, 基本原理

Etymology

From Old French, via Latin, meaning a starting or foundational truth; the origin highlights its role as a basic premise.

Common phrases

in principleon principlebasic principleunder principle

Synonyms

beliefdoctrinetenetpreceptmaxim

Related words

ruleidealstandardlawvalue

Frequently asked questions

Is 'principle' formal or informal?
Is 'principle' formal or informal in writing?
What's the difference between 'principle' and 'rule'?
What is the difference between 'principle' and 'rule'?
Can 'principle' mean a personal value?
Can 'principle' mean a personal value?
Is 'principle' used in Academic writing?
Is 'principle' commonly used in Academic essays?