blacklist
blacklist 30秒で
- To blacklist is to formally exclude a person or entity from a group, industry, or system, often as a punishment or security measure.
- It is a transitive verb, meaning you always blacklist 'someone' or 'something', and it is commonly used in professional and technical contexts.
- The term implies a recorded or collective decision, making it much stronger and more official than a simple personal rejection or avoidance.
- Modern alternatives like 'blocklist' or 'denylist' are becoming common in tech, but 'blacklist' remains the standard term in history and general news.
The verb blacklist refers to the act of placing an individual, a group, a company, or even a whole nation onto a list of entities that are to be systematically avoided, boycotted, or denied specific privileges and rights. When you blacklist someone, you are effectively declaring them persona non grata within a specific professional, social, or economic ecosystem. This is not merely a personal dislike; it is an institutional or collective decision to exclude. Historically, this term has carried significant weight in labor movements, where employers would blacklist union organizers to prevent them from finding work elsewhere. In the modern digital age, the term has evolved to encompass cybersecurity and financial systems, where IP addresses or credit-deficient individuals are blacklisted to protect the integrity of a network or market.
- Professional Context
- In the corporate world, to blacklist a vendor means to terminate all future contracts and forbid any department from engaging with them due to poor performance or ethical violations. This action serves as a permanent barrier to entry for that vendor.
After the data breach, the security firm advised the enterprise to blacklist all incoming traffic from the suspicious range of IP addresses to prevent further infiltration.
The usage of 'blacklist' often implies a sense of finality and severity. It is a tool of social or economic control. For instance, during the mid-20th century in the United States, the 'Hollywood Blacklist' was a period where screenwriters and actors were denied employment because of their suspected political beliefs. This demonstrates that blacklisting can be used both as a legitimate security measure and as a tool for discrimination or political suppression. In a more casual sense, social circles might blacklist an individual who has consistently betrayed the group's trust, though 'ostracize' is often the more common academic term for social exclusion.
- Economic Context
- Financial institutions may blacklist individuals with a history of fraudulent activity, ensuring that no other bank within their network provides them with credit facilities or high-value accounts.
The government threatened to blacklist any country that refused to comply with the international maritime safety regulations.
Furthermore, the word is frequently used in the context of email and spam. If a mail server is found to be sending out millions of unsolicited messages, major email providers will blacklist that server's domain. This means any email coming from that source will be automatically rejected or sent to the recipient's junk folder. This technical application is one of the most common ways people interact with the concept of blacklisting today, often without even realizing it. The process is usually automated, based on algorithms that detect patterns of abuse or non-compliance with established protocols.
If you fail to pay your debts on time, credit agencies may blacklist you, making it nearly impossible to secure a mortgage in the future.
- International Relations
- Nations may blacklist specific foreign entities suspected of funding terrorism, thereby freezing their assets and banning trade with any citizen of the blacklisting country.
The activist group urged consumers to blacklist the clothing brand due to its documented use of sweatshop labor.
The casino decided to blacklist the professional gambler after they were caught counting cards at the blackjack table.
In summary, to blacklist is to exert power through exclusion. Whether it is a teacher blacklisting a disruptive student from a field trip or a global trade organization blacklisting a rogue state, the core mechanic remains the same: the identification of an 'unacceptable' entity followed by the systematic denial of access. It is a word that sits at the intersection of logistics, ethics, and power dynamics, making it an essential term for understanding how systems maintain order and discipline.
Using the verb blacklist requires an understanding of its transitive nature; you must blacklist *something* or *someone*. It is most commonly used in professional, legal, and technical contexts. Because it is a regular verb, its forms are straightforward: blacklist (base), blacklists (third-person singular), blacklisted (past/past participle), and blacklisting (present participle). However, the weight of the word means it should be used when the exclusion is formal or significant. You wouldn't typically 'blacklist' a friend from a birthday party—that would be 'uninviting' or 'excluding'. You 'blacklist' a person from an industry or a website from a server.
- Active Voice
- In the active voice, the subject is the entity doing the excluding. 'The committee decided to blacklist the corrupt official.' This emphasizes the agency of the committee.
The IT department will blacklist any employee who attempts to access restricted government files without authorization.
The passive voice is extremely common with this word, as the focus is often on the person or entity being excluded rather than the specific group doing the excluding. 'He was blacklisted from the film industry' is a classic construction. This usage often implies that the exclusion is widespread or systemic, rather than coming from a single source. When you use the passive voice, you highlight the victim's status or the consequences of their actions. It is often followed by the preposition 'from' to indicate what the entity is being excluded from.
- Gerund Usage
- 'Blacklisting' can function as a noun (gerund) to describe the practice itself. 'The blacklisting of political dissidents is a violation of human rights.'
The company has a policy of blacklisting any subcontractors who fail to meet safety standards twice.
You can also use 'blacklist' in conditional and modal constructions to express warnings or threats. 'If you leak this information, we will have no choice but to blacklist you.' This is a powerful rhetorical device in negotiations or disciplinary actions. It sets a clear boundary and a severe consequence. In technical documentation, you will often see it used in the imperative: 'Blacklist the following IP addresses to mitigate the DDoS attack.' Here, it serves as a direct instruction for a security protocol.
They feared that speaking out against the CEO would cause the board to blacklist them from future promotions.
- Perfect Tense
- Using the perfect tense helps describe a state that has existed for some time. 'The rogue state has been blacklisted by the UN for over a decade.'
By the time the error was discovered, the system had already blacklisted several legitimate users.
The landlord threatened to blacklist the tenant from all local rental agencies if the rent wasn't paid.
When writing about blacklisting, consider the ethical implications. Because the verb implies a heavy, often life-altering consequence, it is frequently paired with adverbs like 'unfairly', 'systematically', 'permanently', or 'automatically'. These modifiers help clarify the nature of the action—whether it was a mistake, a deliberate policy, or a long-standing tradition. By mastering these patterns, you can use 'blacklist' to describe complex social and technical barriers with precision.
In the 21st century, the word blacklist is most frequently heard in three distinct domains: technology, finance, and geopolitical news. If you work in IT or software development, you will hear it almost daily in relation to security protocols. Developers often talk about 'blacklisting' certain inputs to prevent SQL injection attacks or 'blacklisting' malicious domains in email filters. This technical usage is clinical and objective; it describes a binary state where a piece of data is either allowed or blocked. In this context, the word is often used as both a verb and a noun (e.g., 'Add this to the blacklist').
- News & Media
- You will hear news anchors discuss how international bodies blacklist certain regimes to stop the flow of illegal weapons or money laundering. This is a high-stakes, global application of the word.
The BBC reported that the European Union might blacklist several tax havens that refuse to share financial data.
In the financial sector, 'blacklisting' is a term of dread for consumers. You might hear it on personal finance podcasts or read about it in banking terms and conditions. If a person is 'blacklisted' by a credit agency, it means they have been flagged as a high-risk borrower. This isn't just a low score; it's a formal designation that can prevent someone from opening a basic bank account or getting a mobile phone contract. In this sphere, the word is often associated with the 'consequences of debt' and 'financial rehabilitation'. It’s a word that carries a lot of anxiety for people struggling with their finances.
- Workplace & HR
- While often illegal, whispers of 'blacklisting' occur in niche industries where everyone knows everyone. A 'difficult' employee might fear being blacklisted from future projects in the industry.
During the conference, the speaker explained how to blacklist toxic IP addresses to keep the community forums safe from trolls.
You will also encounter 'blacklist' in the world of professional sports and entertainment. For example, a stadium might blacklist a fan who has repeatedly engaged in violent behavior, banning them from all future matches. Or, a talent agency might blacklist a client who has breached their contract multiple times. In these cases, the word is used to signal a formal, public-facing ban. It is often reported in sports news as a disciplinary measure to maintain the 'integrity of the game'. The public nature of such a blacklist is intended to serve as a deterrent to others.
The airline decided to blacklist the passenger for life after he caused a major disturbance mid-flight.
- Gaming & Online Communities
- In online gaming, moderators 'blacklist' cheaters or hackers, ensuring they can never rejoin the game's servers with the same credentials.
The gaming company announced they would blacklist any accounts found using third-party software to gain an unfair advantage.
The city council voted to blacklist the construction company after they failed to meet the building's safety codes.
Finally, the word appears in literary and historical discussions. It's a key term when studying the history of unions, the Cold War, or the evolution of the internet. Because it spans so many fields—from the very technical to the deeply personal—it is a versatile word that listeners and readers will encounter in varied contexts, always signifying a hard line between those who are 'in' and those who are 'out'.
One of the most frequent mistakes learners make with the verb blacklist is confusing it with simply 'blocking' or 'ignoring' someone on a personal level. While the result is similar, 'blacklisting' implies a formal, recorded, or collective exclusion. If you stop replying to a friend's texts, you haven't blacklisted them; you are just ignoring them. If a social club votes to never allow that person to enter their building again and records their name in a ledger, *that* is blacklisting. Using the word for trivial personal slights can make your speech sound overly dramatic or technically incorrect.
- Confusion with 'Blackmail'
- A very common error is mixing up 'blacklist' and 'blackmail'. To blackmail is to demand money in exchange for not revealing a secret. To blacklist is to exclude someone from a group or activity. They are completely different actions.
Incorrect: He tried to blacklist me by saying he would tell my boss about my past unless I paid him. (Should be: blackmail)
Another mistake involves the preposition that follows the verb. Many learners use 'blacklist against' or 'blacklist to', but the correct and most natural preposition is 'from'. You blacklist someone *from* an industry, *from* a server, or *from* a list of approved vendors. Occasionally, you might say someone is 'on a blacklist', using the noun form, but when using the verb, 'from' is your best friend. Forgetting to specify what the entity is excluded from can also lead to ambiguity. 'The company blacklisted him' leaves the reader wondering—from the building? from the payroll? from the entire industry?
- Transitive Property
- 'Blacklist' is a transitive verb. You cannot just 'blacklist' in a general sense; you must have an object. 'The company decided to blacklist' is an incomplete sentence.
Incorrect: Because of his behavior, the manager blacklisted. (Correct: ...blacklisted him from the store.)
Learners also struggle with the intensity of the word. Because 'blacklist' carries such a heavy historical and professional weight, using it in casual conversation can sometimes sound like 'translationese'—where a learner picks a very formal word for a simple concept. If a teacher tells a student they can't come to one class, 'blacklist' is too strong. 'Barred' or 'excluded' might be better. 'Blacklist' suggests a permanent or very long-term entry into a record that others will see. It is a 'capital-P' Policy word.
Incorrect: My mom blacklisted me from the kitchen until I finished my homework. (Too formal; use 'banned' or 'barred' instead.)
- Spelling & Forms
- It is one word, not two (not 'black list'). As a verb, it follows regular conjugation. Don't forget the 'ed' for the past tense: 'He was blacklisted,' not 'He was blacklist.'
The government has blacklisted the organization for its alleged links to cybercrime.
The spam filter will blacklist any email containing those specific keywords.
Finally, avoid using 'blacklist' as a noun when you mean the action. 'He put a blacklist on me' is clunky. Use the verb: 'He blacklisted me.' Or use the noun correctly: 'He put me on a blacklist.' Keeping the distinction between the action (verb) and the object (noun) will make your English sound much more natural and professional.
The English language offers several synonyms for blacklist, each with its own subtle nuance. Choosing the right one depends on the level of formality and the specific context of the exclusion. 'Ban' is the most common and versatile alternative. While 'blacklist' implies a list or a record, 'ban' simply means to forbid something. You can ban a book, ban a person from a shop, or ban a specific behavior. It is less formal than 'blacklist' but carries a similar weight of authority.
- Blacklist vs. Ostracize
- 'Blacklist' is usually professional or institutional. 'Ostracize' is social. If a group of friends stops talking to someone, they are ostracizing them. If a group of companies stops hiring someone, they are blacklisting them.
While the club didn't formally blacklist him, the members began to ostracize him after the incident.
'Boycott' is another related term, but it usually refers to a consumer-led movement. When people 'boycott' a brand, they are refusing to buy its products as a form of protest. 'Blacklisting' a brand might be something a government or a large corporation does to prevent others from doing business with it. 'Boycott' is a bottom-up action (from the people), while 'blacklist' is often a top-down action (from an authority). Another technical alternative is 'blocklist', which is identical in meaning to 'blacklist' but increasingly preferred in the tech industry to maintain neutral language.
- Blacklist vs. Expel
- 'Expel' means to force someone to leave an organization they are already in (like a school). 'Blacklist' means to prevent them from ever joining or participating in the future.
The university decided to expel the student and then blacklist them from applying to any other campus in the system.
In a technical setting, 'filter' or 'block' are often used. 'The firewall is filtering these requests' is a softer way of saying it is blacklisting them. 'Proscribe' is a very formal, academic synonym that means to forbid by law or to denounce. You might read about 'proscribed organizations' in a political science textbook. 'Veto' is also related, but it specifically means to use your power to stop a decision or a law from being passed. While a veto can lead to something being 'blacklisted' (like a proposed project), the words describe different parts of the power process.
The security software will blacklist any website that is known to host malware or phishing scams.
- Blacklist vs. Shun
- 'Shun' is a more emotional and personal form of exclusion. It implies a persistent avoidance. 'Blacklist' is the bureaucratic version of shunning.
If you violate the terms of service, the platform will blacklist your hardware ID, preventing you from creating new accounts.
The trade union was accused of trying to blacklist workers who refused to participate in the strike.
Understanding these distinctions allows you to choose the word that fits the 'vibe' of your sentence. If you want to sound like a technical expert, 'blacklist' or 'blocklist' is perfect. If you want to sound like a historian, 'proscribe' or 'ostracize' might be more appropriate. If you are just talking about a house rule, 'ban' is usually the most natural choice.
How Formal Is It?
豆知識
The 'Hollywood Blacklist' of the 1940s and 50s is the most famous historical example, where the 'Hollywood Ten' were blacklisted for refusing to answer questions about their political affiliations before Congress.
発音ガイド
- Pronouncing it as two separate words with equal stress.
- Confusing the 'i' sound with a long 'ee' sound.
- Failing to pronounce the final 't' clearly.
- Mixing up the stress with the second syllable.
- Pronouncing 'black' like 'block'.
難易度
Common in news and technical articles, easy to recognize.
Requires correct preposition ('from') and understanding of transitive property.
Useful for professional discussions about security or ethics.
Clear pronunciation, often appears in podcasts and news.
次に学ぶべきこと
前提知識
次に学ぶ
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知っておくべき文法
Transitive Verbs
You must say 'They blacklisted *him*', not just 'They blacklisted'.
Passive Voice for Unknown Agents
He was blacklisted (we don't know exactly who did it).
Gerund as Subject
Blacklisting is a controversial practice.
Prepositional Collocation
Blacklisted *from* (not 'of' or 'to').
Regular Verb Conjugation
Today I blacklist, yesterday I blacklisted.
レベル別の例文
The teacher will blacklist the bad student.
La maestra pondrá en la lista negra al mal estudiante.
Simple future tense: will + verb.
They blacklist people who steal from the shop.
Ellos ponen en la lista negra a las personas que roban en la tienda.
Present simple for a general rule.
Do not blacklist your friends.
No pongas a tus amigos en la lista negra.
Imperative form (negative).
The bank can blacklist you if you don't pay.
El banco puede ponerte en la lista negra si no pagas.
Modal verb 'can' for possibility.
He was blacklisted from the game.
Él fue puesto en la lista negra del juego.
Passive voice: was + past participle.
Why did they blacklist her?
¿Por qué la pusieron en la lista negra?
Question form in past simple.
I will blacklist this email address.
Pondré esta dirección de correo en la lista negra.
Direct object: 'this email address'.
The club blacklists people who are loud.
El club pone en la lista negra a la gente que es ruidosa.
Third-person singular 's'.
The company decided to blacklist the lazy worker.
La empresa decidió poner en la lista negra al trabajador perezoso.
Infinitive after the verb 'decided'.
If you lie, they will blacklist you from the team.
Si mientes, te pondrán en la lista negra del equipo.
First conditional: If + present, will + verb.
The hotel blacklisted the guest for breaking a window.
El hotel puso en la lista negra al huésped por romper una ventana.
Past simple 'ed'.
Many stores blacklist people who try to use fake money.
Muchas tiendas ponen en la lista negra a quienes intentan usar dinero falso.
Plural subject with base verb.
She was blacklisted from the library for a year.
Ella fue puesta en la lista negra de la biblioteca por un año.
Passive voice with a time duration.
The system blacklists any password that is too short.
El sistema pone en la lista negra cualquier contraseña que sea demasiado corta.
Metaphorical use for technical exclusion.
They are blacklisting all the old cars from the city center.
Están poniendo en la lista negra a todos los coches viejos del centro.
Present continuous for an ongoing action.
You should not blacklist someone just because you are angry.
No deberías poner a alguien en la lista negra solo porque estás enojado.
Modal verb 'should' for advice.
The government blacklisted the organization due to security concerns.
El gobierno puso a la organización en la lista negra debido a preocupaciones de seguridad.
Prepositional phrase 'due to'.
After the fight, the stadium blacklisted the fan for life.
Después de la pelea, el estadio puso al aficionado en la lista negra de por vida.
Time phrase 'for life'.
Is it legal for a company to blacklist former employees?
¿Es legal que una empresa ponga en la lista negra a ex empleados?
Interrogative with 'is it legal for... to...'.
The software will automatically blacklist any IP address that tries to hack the site.
El software pondrá automáticamente en la lista negra cualquier dirección IP que intente hackear el sitio.
Adverb 'automatically' modifying the verb.
He feared that the industry would blacklist him if he spoke to the press.
Temía que la industria lo pusiera en la lista negra si hablaba con la prensa.
Reporting verb 'feared' with a 'that' clause.
The airline blacklisted the passenger after his disruptive behavior on the flight.
La aerolínea puso al pasajero en la lista negra tras su comportamiento perturbador en el vuelo.
Participle phrase 'after his disruptive behavior'.
They were blacklisted from the competition for using prohibited substances.
Fueron puestos en la lista negra de la competición por usar sustancias prohibidas.
Passive voice with a reason starting with 'for'.
The council decided to blacklist the contractor for poor workmanship.
El consejo decidió poner en la lista negra al contratista por mala ejecución de obra.
Noun 'workmanship' as the object of 'for'.
The European Union may blacklist countries that facilitate money laundering.
La Unión Europea puede poner en la lista negra a los países que facilitan el blanqueo de dinero.
Modal 'may' for formal possibility.
Social media platforms often blacklist users who violate their terms of service.
Las plataformas de redes sociales a menudo ponen en la lista negra a los usuarios que violan sus términos de servicio.
Adverb of frequency 'often'.
The union accused the factory owners of blacklisting activists.
El sindicato acusó a los dueños de la fábrica de poner en la lista negra a los activistas.
Gerund 'blacklisting' after the preposition 'of'.
Being blacklisted by a major credit bureau can ruin your financial future.
Ser puesto en la lista negra por una importante agencia de crédito puede arruinar tu futuro financiero.
Gerund phrase as the subject of the sentence.
The IT team has to blacklist the domain to prevent further phishing attacks.
El equipo de TI tiene que poner el dominio en la lista negra para evitar más ataques de phishing.
Semi-modal 'has to' for necessity.
Historians study how the government used to blacklist authors during the Cold War.
Los historiadores estudian cómo el gobierno solía poner en la lista negra a los autores durante la Guerra Fría.
Used to + base verb for past habits.
The casino will blacklist anyone suspected of card counting.
El casino pondrá en la lista negra a cualquier persona sospechosa de contar cartas.
Passive participle 'suspected' modifying 'anyone'.
Many tech companies are choosing to blacklist certain keywords in their search engines.
Muchas empresas tecnológicas están optando por poner en la lista negra ciertas palabras clave en sus motores de búsqueda.
Present continuous with 'choosing to'.
The regulatory body threatened to blacklist the firm if it didn't improve its transparency.
El organismo regulador amenazó con poner a la firma en la lista negra si no mejoraba su transparencia.
Complex conditional with 'if' and 'didn't'.
Ethical investors often blacklist corporations that contribute to environmental degradation.
Los inversores éticos a menudo ponen en la lista negra a las corporaciones que contribuyen a la degradación ambiental.
Relative clause 'that contribute to...'.
The move to blacklist the journalist was condemned as an attack on free speech.
La medida de poner en la lista negra al periodista fue condenada como un ataque a la libertad de expresión.
Infinitive phrase 'to blacklist the journalist' as an adjectival modifier.
Our firewall is configured to blacklist any traffic originating from that specific region.
Nuestro cortafuegos está configurado para poner en la lista negra cualquier tráfico procedente de esa región específica.
Passive construction 'is configured to'.
Despite his talent, he remained blacklisted from the major studios for decades.
A pesar de su talento, permaneció en la lista negra de los principales estudios durante décadas.
Concessive phrase 'Despite his talent'.
The committee argued that blacklisting the supplier was the only way to ensure quality.
El comité argumentó que poner al proveedor en la lista negra era la única forma de garantizar la calidad.
Gerund phrase 'blacklisting the supplier' as the subject of the subordinate clause.
The gaming community voted to blacklist the player after proof of cheating emerged.
La comunidad de jugadores votó a favor de poner al jugador en la lista negra después de que surgieran pruebas de trampas.
Prepositional phrase 'after proof of cheating emerged'.
They sought to blacklist the offshore accounts to curb tax evasion.
Intentaron poner las cuentas en el extranjero en la lista negra para frenar la evasión fiscal.
Verb 'sought' followed by an infinitive.
The systemic blacklisting of whistleblowers remains a significant hurdle for corporate accountability.
La puesta en lista negra sistémica de los denunciantes sigue siendo un obstáculo importante para la responsabilidad corporativa.
Noun form 'blacklisting' with an adjective 'systemic'.
Diplomatic efforts were undermined when the superpower decided to blacklist the newly elected leader.
Los esfuerzos diplomáticos se vieron socavados cuando la superpotencia decidió poner en la lista negra al líder recién elegido.
Passive voice 'were undermined' followed by a time clause.
The algorithm's tendency to blacklist minority-owned businesses sparked a nationwide debate on bias.
La tendencia del algoritmo a poner en la lista negra a los negocios de minorías desató un debate nacional sobre el sesgo.
Possessive 'algorithm's' with the noun 'tendency'.
To blacklist a sovereign state is a measure of last resort in international relations.
Poner en la lista negra a un estado soberano es una medida de último recurso en las relaciones internacionales.
Infinitive phrase as the subject of the sentence.
The industry's decision to blacklist the director was seen as a move to stifle creative dissent.
La decisión de la industria de poner al director en la lista negra fue vista como un movimiento para sofocar la disidencia creativa.
Passive voice 'was seen as'.
Critics argue that the power to blacklist should not reside solely with private corporations.
Los críticos argumentan que el poder de poner en la lista negra no debería residir únicamente en las corporaciones privadas.
Modal 'should not reside' with the adverb 'solely'.
The unintended consequence was that the system began blacklisting legitimate medical research sites.
La consecuencia no deseada fue que el sistema comenzó a poner en la lista negra sitios de investigación médica legítimos.
Subordinate clause starting with 'that'.
By blacklisting the insurgent group, the government effectively cut off their primary funding streams.
Al poner al grupo insurgente en la lista negra, el gobierno cortó efectivamente sus principales flujos de financiación.
Preposition 'By' followed by a gerund to show means/method.
よく使う組み合わせ
よく使うフレーズ
— To prevent someone from ever working in a specific field again.
The scandal blacklisted him from the banking industry.
— To add a name to a list of excluded people (noun usage with verb phrase).
They put his name on a blacklist for failing to pay his debts.
— To block access to a specific URL or domain.
Parental controls can blacklist certain websites.
— To block all traffic from a specific computer or network.
Our server will blacklist your IP if you try to log in too many times.
— To be added to a blacklist by someone else.
If you are not careful, you might get blacklisted by the credit agency.
— To stop doing business with a provider forever.
The company had to blacklist the supplier due to quality issues.
— To prevent a specific word from being used or searched.
The forum blacklisted several offensive keywords.
— To ensure a person is never hired by a company.
HR decided to blacklist the candidate after the background check.
— To prevent a specific phone or computer from accessing a network.
The carrier can blacklist a stolen phone so it can't be used.
よく混同される語
Blackmail is extortion (money for secrets); blacklisting is exclusion.
Blocking is a general action; blacklisting is a formal or recorded exclusion.
Boycott is a consumer protest; blacklisting is an institutional ban.
慣用句と表現
— A record of a mistake or failure that damages someone's reputation.
The failed project was a black mark against his name.
informal— A person who is not welcome in a particular place or among a particular group.
After the incident, he was persona non grata at the club.
formal— In a state of disagreement or exclusion from a group.
He's been on the outs with the management for months.
informal— To be ignored or ostracized by a group of people.
The other workers sent him to Coventry after he reported the manager.
British/Idiomatic— To exclude someone from important information or decisions.
They blacklisted him from meetings, effectively cutting him out of the loop.
business— To act in a way that makes it impossible to return to a previous situation.
He burnt his bridges and was blacklisted from the firm.
neutral— To be excluded from a group or activity.
The new policy left the smaller vendors out in the cold.
informal— To create a limit that must not be crossed.
The company drew a line in the sand and blacklisted the offender.
neutral— To intentionally ignore someone.
They didn't blacklist her formally, but they gave her the cold shoulder.
informal— To refuse to deal with someone or give them an opportunity.
The industry shut the door on him by blacklisting him.
neutral間違えやすい
Opposite term, often used in the same context.
To blacklist is to exclude; to whitelist is to specifically allow.
Don't blacklist the user; whitelist them so they can enter.
Both mean to send away.
Banish usually refers to a physical place (like a country); blacklist refers to a list or industry.
The king decided to banish the knight from the kingdom.
Both involve exclusion.
Ostracize is social and informal; blacklist is formal and recorded.
The classmates began to ostracize the new student.
Both mean to forbid.
Proscribe is much more formal and usually involves a legal or official decree.
The government proscribed the use of the dangerous chemical.
Both mean to exclude from a right.
Debar is a legal term specifically for rights and privileges.
He was debarred from the legal profession.
文型パターン
Subject + blacklist + Object
The shop blacklists thieves.
Subject + be + blacklisted + from + Noun
He was blacklisted from the team.
It + be + common + to + blacklist + Object
It is common to blacklist spam emails.
Gerund + of + Object + be + Noun
Blacklisting of dissidents is a serious issue.
The + Adjective + blacklisting + of + Object + Verb
The systemic blacklisting of whistleblowers continues.
If + Subject + Verb, + Subject + will + blacklist + Object
If you cheat, they will blacklist you.
Subject + decide + to + blacklist + Object
The board decided to blacklist the firm.
Subject + threaten + to + blacklist + Object
The regulator threatened to blacklist the bank.
語族
名詞
動詞
形容詞
関連
使い方
High in technical and news domains; moderate in daily speech.
-
I will blacklist to him.
→
I will blacklist him.
Blacklist is a transitive verb; it does not take the preposition 'to' before the object.
-
He was blackmailed from the industry.
→
He was blacklisted from the industry.
Blackmail is for extortion; blacklist is for exclusion.
-
The company black list the vendor.
→
The company blacklisted the vendor.
'Blacklist' is one word and needs the correct tense ending.
-
They blacklisted him of the club.
→
They blacklisted him from the club.
The correct preposition to use after 'blacklist' is 'from'.
-
She blacklisted about the problem.
→
She complained about the problem.
Blacklist is not a synonym for complain; it means to exclude.
ヒント
Use with Prepositions
Always remember to use 'from' when specifying the area of exclusion. Example: 'Blacklisted from the server.'
Professional Tone
Use 'blacklist' when you want to sound more formal or describe an official policy.
Tech Alternative
In modern software development, 'blocklist' is often preferred over 'blacklist'.
Transitive Nature
Ensure you have a clear object. You must blacklist *something*.
Historical Reference
Mentioning the 'Hollywood Blacklist' can add depth to your historical or political discussions.
Don't Confuse with Blackmail
Always check if you are talking about exclusion (blacklist) or extortion (blackmail).
Passive Voice
The passive voice ('He was blacklisted') is very common and useful for this word.
One Word
Always write it as one word, never 'black list' when using it as a verb.
Social Exclusion
For social situations, 'ostracize' or 'shun' might sound more natural than 'blacklist'.
The 'X' Rule
Think of a blacklist as a list with a big black 'X' over every name.
暗記しよう
記憶術
Think of a 'Black' pen crossing out a name on a 'List'. Once a name is blacked out, you can no longer see it or use it. BLACK + LIST = GONE.
視覚的連想
Imagine a big red 'X' being spray-painted over a company's logo on a wall. That company is now blacklisted.
Word Web
チャレンジ
Try to use 'blacklist' in three different ways today: once about a computer, once about a business, and once about a social situation.
語源
The term 'blacklist' dates back to the early 17th century. It originally referred to a list of people who were suspected of being subversives or criminals. In the 1660s, during the reign of King Charles II of England, a list was made of the people who had signed the death warrant of his father, Charles I. These people were 'blacklisted' and many were later executed or fled.
元の意味: A physical list of people who were to be punished or viewed with suspicion by the state.
English (Germanic roots)文化的な背景
Some organizations now prefer 'blocklist' or 'denylist' to avoid using 'black' as a synonym for 'bad' or 'forbidden'.
The term is deeply tied to the history of the American film industry and the Cold War.
実生活で練習する
実際の使用場面
Cybersecurity
- blacklist the IP
- blocklist the domain
- spam blacklist
- firewall blacklisting
Finance
- credit blacklist
- blacklist a borrower
- financial exclusion
- blacklist a bank
Employment
- blacklist a worker
- industry blacklist
- labor dispute
- unfair blacklisting
International Relations
- blacklist a state
- trade blacklist
- sanction list
- blacklist an entity
Gaming
- blacklist a cheater
- server blacklist
- hardware blacklist
- ban list
会話のきっかけ
"Have you ever had an email go to spam because the server was blacklisted?"
"Do you think it's fair for companies to blacklist employees who quit without notice?"
"What are some reasons a country might be blacklisted by the international community?"
"How does a person get removed from a credit blacklist in your country?"
"Do you think 'blocklist' is a better term than 'blacklist' for modern technology?"
日記のテーマ
Describe a time when you felt excluded from a group. Would you call it being 'blacklisted'?
Argue for or against the use of blacklisting as a tool for enforcing ethical business practices.
Write about the historical impact of the Hollywood Blacklist on creative freedom.
If you were in charge of a social media platform, how would you decide which users to blacklist?
Reflect on the power dynamics involved when a large organization decides to blacklist a small individual.
よくある質問
10 問No, it is a standard English verb. However, some people avoid it because of potential racial connotations, preferring 'blocklist'.
Yes, governments can blacklist individuals, meaning they are barred from entering the country or doing business there.
It is a regular verb, so you just add '-ed': 'They blacklisted the company last year.'
To block is the immediate action. To blacklist is to put someone on a permanent list so they are always blocked in the future.
In some cases, like employment, blacklisting workers for union activity is illegal. In other cases, like cybersecurity, it is a standard legal practice.
Yes, in some contexts, like gambling, you can 'self-blacklist' or 'self-exclude' from casinos to help with addiction.
It's a list used by banks to identify people who have a bad history of not paying back their loans.
As a verb, it is always one word: 'blacklist'. As a noun, it is also usually one word.
It means a computer program makes the decision to block someone without a human needing to do anything.
The most common opposite is 'whitelist' (or 'allowlist').
自分をテスト 190 問
Write a sentence using 'blacklist' about a computer security situation.
Well written! Good try! Check the sample answer below.
Write a sentence using 'blacklisted' in the passive voice about an actor.
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Write a short paragraph about why a bank might blacklist a customer.
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Use 'blacklist' as a verb in a sentence about a local shop.
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Write a sentence using the gerund 'blacklisting'.
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Explain the difference between 'blacklist' and 'whitelist' in one sentence.
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Write a warning sentence using 'blacklist'.
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Write a sentence about a country being blacklisted.
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Use 'blacklist' in a sentence about a sports fan.
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Write a sentence using 'blacklist' in the future tense.
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Write a formal sentence about a regulatory body blacklisting a firm.
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Use 'blacklist' in a sentence about a social situation.
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Write a sentence using 'blacklisted' as an adjective.
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Explain why 'blocklist' might be used instead of 'blacklist'.
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Write a sentence using 'blacklist' about a mobile phone.
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Write a sentence using 'blacklist' about a library.
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Write a sentence about a teacher blacklisting a student.
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Use 'blacklist' in a sentence about a gaming server.
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Write a sentence using 'blacklist' about a vendor.
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Write a sentence about the Hollywood Blacklist.
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Explain what 'blacklist' means to a friend who doesn't know the word.
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Discuss a time you think it is fair to blacklist a company.
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Talk about the risks of being blacklisted by a credit agency.
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Describe how a computer 'blacklists' an email.
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Give your opinion on the Hollywood Blacklist of the 1950s.
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How would you tell someone they are being blacklisted from a club?
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Discuss the ethical problems with algorithms that blacklist people.
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What would you do if you were unfairly blacklisted from an industry?
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Why do some people prefer the word 'blocklist'?
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Can blacklisting be used for good? Give an example.
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Describe the process of blacklisting a stolen phone.
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Is it right for social media to blacklist certain users?
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What are the social consequences of being blacklisted in a small town?
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How can a company get off a blacklist?
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Explain why a casino might blacklist a 'card counter'.
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Talk about the noun form 'blacklist' vs the verb 'blacklist'.
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Discuss 'blacklisting' in the context of international sanctions.
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What is 'self-blacklisting' in gambling?
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How does blacklisting affect a person's reputation?
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Compare 'blacklisting' with 'firing' an employee.
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Listen to the sentence: 'The system will blacklist any IP that fails to login three times.' What triggers the blacklisting?
Listen: 'He was blacklisted from Hollywood for a decade.' How long was he excluded?
Listen: 'The committee is blacklisting the supplier due to fraud.' What is the reason?
Listen: 'Don't blacklist me just because I'm late!' Is the speaker being serious or dramatic?
Listen: 'The government blacklisted several offshore accounts.' What did they blacklist?
Listen: 'She feared being blacklisted after the whistleblowing.' What caused her fear?
Listen: 'The casino blacklists card counters.' Who is being excluded?
Listen: 'The spam filter blacklists suspicious domains.' What is the filter's job?
Listen: 'They were blacklisted from the tournament for using drugs.' Why were they banned?
Listen: 'Is it legal to blacklist employees?' What is the speaker asking about?
Listen: 'The bank blacklisted him for life.' What is the duration?
Listen: 'The move to blacklist the journalist was controversial.' How did people feel about it?
Listen: 'We must blacklist these keywords to protect the kids.' What is the goal?
Listen: 'The airline blacklisted the unruly passenger.' What kind of passenger was it?
Listen: 'Blacklisting is a tool of exclusion.' What is blacklisting described as?
/ 190 correct
Perfect score!
Summary
The verb 'blacklist' describes the act of systematic exclusion. Whether it is a bank denying credit, a server blocking spam, or an industry barring a worker, blacklisting is a formal exercise of power used to protect a system by removing those deemed unacceptable. Example: 'The league decided to blacklist the coach after the cheating scandal.'
- To blacklist is to formally exclude a person or entity from a group, industry, or system, often as a punishment or security measure.
- It is a transitive verb, meaning you always blacklist 'someone' or 'something', and it is commonly used in professional and technical contexts.
- The term implies a recorded or collective decision, making it much stronger and more official than a simple personal rejection or avoidance.
- Modern alternatives like 'blocklist' or 'denylist' are becoming common in tech, but 'blacklist' remains the standard term in history and general news.
Use with Prepositions
Always remember to use 'from' when specifying the area of exclusion. Example: 'Blacklisted from the server.'
Professional Tone
Use 'blacklist' when you want to sound more formal or describe an official policy.
Tech Alternative
In modern software development, 'blocklist' is often preferred over 'blacklist'.
Transitive Nature
Ensure you have a clear object. You must blacklist *something*.
例文
I think the local pizza place blacklisted our address because my roommate never tips.
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