12 Black Idioms in English with Meanings and Examples

Black idioms in English are colourful expressions that can make your vocabulary richer and more natural. You may already know phrases such as in the black or the black sheep of the family, but there are many more useful expressions with the word black. In this lesson, you will learn 12 black idioms in English with clear meanings and example sentences, so you can understand them better and use them with confidence in speaking and writing.

Idioms are an important part of natural English. They appear in films, TV series, books, newspapers, and everyday conversations, and they often tell us something about the culture behind the language. Learning idioms can make your English sound more fluent, expressive, and colourful. It can also help you understand native speakers much more easily.

In this post, we will explore twelve common idioms and expressions with the word black, along with meanings and example sentences, so you can see how they are used in context.

List of “Black” Idioms and Expressions

• be in the black
• be in someone’s black books
• black and blue
• black hat hacker
• say black is white
• black eye
• black market
• black sheep
• black out
• in black and white
• pitch black
• the pot calling the kettle black

Let’s look at them one by one.

1. Be in the black

Meaning: To have money in your bank account, or to be in profit rather than in debt. This expression is often used when talking about personal finances or business.

Examples:

• It has been a difficult year, but the company is still in the black.
• As long as your finances are in the black, you do not need to panic.
• Their small family business is finally back in the black after several hard months.

2. Be in someone’s black books

Meaning: To be in a situation where someone is annoyed with you because of something you did or failed to do. This is a very common British expression.

Examples:

• I’m in my mother’s black books because I forgot to tidy my room.
• If you keep speaking so rudely, you’ll be in my black books.
• Tom is in the boss’s black books after missing another deadline.

3. Black and blue

Meaning: Covered in bruises, usually after being hit or after an accident.

Examples:

• After falling off his bike, he was black and blue all over.
• Her leg was black and blue after she bumped into the table.
• He came home black and blue after the rugby match.

4. Black hat hacker

Meaning: A criminal hacker who breaks into computer systems illegally, often to steal data, money, or passwords. Strictly speaking, this is more of a fixed expression than a traditional idiom, but it is very useful modern vocabulary.

Examples:

• A black hat hacker broke into the company’s system and stole customer data.
• Banks invest heavily in cybersecurity to protect themselves from black hat hackers.
• The film is about a young programmer who gets involved with a black hat hacker group.

5. Say black is white

Meaning: To claim that something obviously false is true, often in a dishonest, manipulative, or absurd way. This expression is often used when talking about politics, arguments, or people who refuse to accept reality.

Examples:

• I’m tired of politicians telling us that black is white.
• He would say black is white if he thought it would help him win the argument.
• No matter what evidence you show her, she keeps insisting that black is white.

6. Black eye

Meaning: A dark bruise around the eye caused by being hit or injured. It can also be used figuratively to mean damage to a person’s or organisation’s reputation, though the literal meaning is more common for learners.

Examples:

• Ryan came home from school with a black eye after a fight.
• She tried to cover her black eye with make-up.
• The scandal gave the company a serious black eye.

7. Black market

Meaning: The illegal buying and selling of goods, often when those goods are controlled, banned, or difficult to get legally.

Examples:

• During the war, many goods were sold on the black market.
• There was a thriving black market in cigarettes on the island.
• Medicines were so expensive that some people turned to the black market.

8. Black sheep

Meaning: A person who is different from the rest of their family or group, often in a way that is seen as embarrassing, rebellious, or unusual.

Examples:

• Michael became the black sheep of the family after he got into trouble with the police.
• Stephen was seen as the black sheep because he wanted to study art instead of law.
• Every family seems to have a black sheep who does things differently.

9. Black out

Meaning: To faint or lose consciousness suddenly. Be careful: blackout as a noun can also mean a power cut or a period when all the lights go out.

Examples:

• The driver may have blacked out at the wheel.
• When she heard the shocking news, she nearly blacked out.
• He blacked out from the heat and had to be taken to hospital.

10. In black and white

Meaning: In written or printed form, clearly documented and easy to prove. This is a very useful expression in formal, legal, and business contexts.

Examples:

• The rules are there in black and white for everyone to read.
• I want to see the agreement in black and white before I sign anything.
• If it is not in black and white, people may later deny what was promised.

11. Pitch black

Meaning: Completely dark.

Examples:

• The road was pitch black, so we used a torch.
• It was pitch black outside by the time we left.
• When the lights went out, the whole house went pitch black.

12. The pot calling the kettle black

Meaning: Used when someone criticises another person for a fault they have themselves. In other words, it means being hypocritical.

Examples:

• Mary called me selfish, which was a bit like the pot calling the kettle black.
• He said I was lazy — talk about the pot calling the kettle black!
• When one rude person complains about another being rude, it is really the pot calling the kettle black.

A Few Useful Notes

Here are a few things worth remembering:

• Some of these are true idioms, while others are common expressions or fixed phrases.
• Not all of them are suitable for every context. For example, in black and white and be in the black are useful in formal English, while the pot calling the kettle black is more conversational.
• Try to learn idioms in full sentences rather than as isolated phrases. That makes them much easier to remember and use naturally.

Final Thoughts on black idioms in English

Learning idioms and expressions like these can make your English richer, more natural, and more engaging. “Black” idioms are especially interesting because they appear in many different contexts, from finance and family life to law, technology, and everyday conversation.

Do not try to memorise all of them at once. Pick three or four, write your own example sentences, and then try to use them in speaking or writing. Little by little, they will become part of your active vocabulary.

Which of these expressions do you like most? And have you ever heard any other idioms with the word black?

Related posts:

Red Idioms in English

White Idioms in English

Green Idioms in English

Blue Idioms in English

Yellow Idioms in English

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