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conscience

American  
[kon-shuhns] / ˈkɒn ʃəns /

noun

consciences plural
  1. the inner sense of what is right or wrong in one's conduct or motives, impelling one toward right action.

    to follow the dictates of conscience.

  2. the complex of ethical and moral principles that controls or inhibits the actions or thoughts of an individual.

  3. an inhibiting sense of what is prudent.

    I'd eat another piece of pie but my conscience would bother me.

  4. conscientiousness.

  5. Obsolete. consciousness; self-knowledge.

  6. Obsolete. strict and reverential observance.


idioms

  1. have something on one's conscience, to feel guilty about something, as an act that one considers wrong.

    She behaves as if she had something on her conscience.

  2. in all conscience, Also in conscience.

    1. in all reason and fairness.

    2. certainly; assuredly.

conscience British  
/ ˈkɒnʃəns /

noun

    1. the sense of right and wrong that governs a person's thoughts and actions

    2. regulation of one's actions in conformity to this sense

    3. a supposed universal faculty of moral insight

  1. conscientiousness; diligence

  2. a feeling of guilt or anxiety

    he has a conscience about his unkind action

  3. obsolete consciousness

    1. with regard to truth and justice

    2. certainly

  4. causing feelings of guilt or remorse

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

conscience More Idioms  

Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of conscience

First recorded in 1175–1225; Middle English, from Anglo-French, from Latin conscientia “knowledge, awareness, conscience”; equivalent to con- + science

Explanation

A conscience is a built-in sense of what's right and what's wrong. That sick feeling in your stomach after you lied to your brother about borrowing his skateboard? That might be your conscience bothering you. The word conscience contains the word science, which comes from the Latin word scientia, meaning "to know" or "knowledge." You can think of your conscience as your knowledge of yourself, especially when it comes to your own morals, or your feelings about right and wrong. Pangs of conscience, which feel like an uncomfortable inner voice, are helpful when you're trying to decide the right thing to do in a particular situation.

Keep Reading on Vocabulary.com

Vocabulary lists containing conscience

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Member Brian Lee also voted no, saying: "I think this endorsement can be potentially harmful, and I cannot in good conscience vote yes."

From Barron's Jul. 23, 2026

No viable model can leave everyone alone to follow his or her conscience.

From The Wall Street Journal Jul. 22, 2026

The Times, for its part, called the subpoenas “an extraordinary escalation” and said the appearance of federal law enforcement at journalists’ homes should shock the conscience of any American who believes in the First Amendment.

From Salon Jul. 15, 2026

"It shakes your conscience," he says, but adds, "work is work and we don't know another way to make a living".

From BBC Jul. 13, 2026

It takes longer but that person is destroyed gradually, by his or her own conscience.

From "Endgame" by Frank Brady

The Clergy and Laymen Concerned About Vietnam, for example, brought together Protestant, Roman Catholic and Jewish Americans who opposed the war because it violated the nation’s ideals and religious consciences.

From The Wall Street Journal Apr. 19, 2026

The French film legend says that the most important thing for her about a film "is that it changes lives, changes people's consciences."

From Barron's Feb. 15, 2026

They successfully argued that the ban burdened their consciences and violated their religious freedom.

From Slate Jul. 9, 2025

The first series of Time, starring Sean Bean and Stephen Graham, won multiple Bafta awards with its portrayal of men navigating the penal system and their consciences.

From BBC Nov. 18, 2023

His best epitaph is something he said himself: ‘Those who follow their consciences are of my religion, and I am of the religion of those who are brave and good.’

From "The Scientists" by John Gribbin

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