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.

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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. 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

2. conscientiousness; diligence

3. a feeling of guilt or anxiety

   he has a conscience about his unkind action

4. obsolete consciousness

5. 1. with regard to truth and justice

   2. certainly

6. causing feelings of guilt or remorse

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conscience More Idioms  

1. see have a clear conscience; in conscience.

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Other Word Forms

Derived Forms

• consciencelessness
  noun
• subconscience
  noun
• conscienceless
  adjective
• consciencelessly
  adverb

Inflected Forms

Nouns

• consciences
  plural

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.

Example Sentences

If your conscience extends to your stocks, where does it leave bonds — the safest corner of your portfolio?

From MarketWatch • Jul. 6, 2026

For Harburg, this would be the first of many songs inspired by his humanitarian conscience.

From The Wall Street Journal • Jun. 25, 2026

“But no, when it comes to things like expanding council sizes … when it comes to ranked choice voting to make our elections more democratic, and being able to vote our conscience, that got punted.”

From Los Angeles Times • Jun. 16, 2026

The pope said the tragedy must "appeal to the conscience" of nations of origin and transit where migrants flee poverty and conflict and fall prey to trafficking gangs.

From Barron's • Jun. 12, 2026

With its gorgeous classical buildings packed with art, its clean water and electric lights, and its overstaffed police department, the exposition was Chicago’s conscience, the city it wanted to become.

From "The Devil in the White City" by Erik Larson

Related Words

• shame