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B1 noun #27 よく出る 11分で読める

tinderbox

上位27

練習する例文メモとヒント tinderbox 30秒で

解説 tinderbox in your Level:

A tinderbox is a very old word for a small box. Long ago, people did not have matches or lighters. They used a tinderbox to start a fire. Inside the box, there were dry things like grass or cloth. These things catch fire very easily. They also had a special stone called flint and a piece of metal. When they hit the stone and metal together, sparks would fall on the dry grass. This started the fire. Today, we don't use these boxes to start fires anymore. But we use the word to talk about a place that is dangerous. If a place is a 'tinderbox,' it means a fight or a fire could start very quickly. For example, if a forest is very dry because there is no rain, we say it is a tinderbox. This means one small spark could start a big forest fire. It is a simple way to say 'this place is ready to burn' or 'this situation is ready to explode into a fight.' You can think of it like a balloon that is too full of air—one tiny pin will make it pop. In the same way, a tinderbox is a situation that is waiting for something small to happen so it can become a big problem. Even though it is an old word, you will see it in news stories about dangerous places in the world.

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At the A2 level, you should know that 'tinderbox' is a noun used to describe a volatile situation. Originally, it was a physical object: a box containing 'tinder' (material that burns easily), flint, and steel. People used it to make fire before matches existed. However, most people today use it as a metaphor. A metaphor is when we use a word to describe something else that is similar. When we call a situation a 'tinderbox,' we mean it is very unstable. It is like a room full of dry paper—if someone lights a match, the whole room will catch fire. We often use this word to describe politics or social problems. For example, 'The city was a tinderbox before the election.' This means people were very angry and a riot could have started easily. You might also hear it in nature reports. If a forest has not had rain for a long time, it is a 'literal tinderbox.' This means it is a real fire hazard. The word helps you express the idea of 'imminent danger.' It is more descriptive than just saying 'dangerous.' It tells the listener that the danger is ready to happen right now. When you use this word, you are showing that you understand how a small event can cause a big reaction. It is a very useful word for talking about news, history, or even intense sports games where the fans are very angry.

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As a B1 learner, you can use 'tinderbox' to add more color and precision to your descriptions of tension. A tinderbox is a situation or place that is extremely volatile and could easily become violent or chaotic. The word comes from the historical tool used to start fires, which relied on highly flammable materials. In modern usage, it is almost always figurative. You will frequently see it in news headlines describing 'geopolitical tinderboxes'—regions where different countries or groups are very angry with each other. The key idea is that the 'fuel' for a conflict is already there; all that is missing is a 'spark.' For example, if workers are unhappy with their low pay and the company announces it is cutting their benefits, that situation is a tinderbox. The low pay is the tinder, and the announcement is the spark. You can also use it to describe environmental risks. During a heatwave, a dry forest is a tinderbox. Grammatically, it is a countable noun, usually preceded by 'a.' Common phrases include 'the situation is a tinderbox' or 'turning the region into a tinderbox.' It is a step above words like 'unstable' or 'risky' because it specifically evokes the image of fire and rapid escalation. Using this word correctly shows that you can handle metaphorical language and understand the nuances of social and political tension. It is a very effective word for summarizing a complex, dangerous state of affairs in a single, vivid image.

At the B2 level, 'tinderbox' becomes a key part of your vocabulary for discussing complex social, political, and historical themes. It is a noun that signifies a state of extreme precariousness and potential volatility. While its literal definition refers to the pre-match fire-starting kit, its figurative power lies in the 'spark-and-fuel' dynamic. A tinderbox situation is one where the underlying conditions (the 'tinder') are so flammable—due to resentment, poverty, or injustice—that any minor incident (the 'spark') could trigger a catastrophic outcome. B2 speakers should be able to use this word in various contexts, such as describing the 'tinderbox of the Balkans' before World War I or the 'tinderbox atmosphere' in a high-stakes corporate negotiation. It is often paired with verbs like 'ignite,' 'smolder,' or 'erupt.' For instance, 'The controversial policy ignited the tinderbox of public opinion.' You should also recognize its use in environmental science to describe 'tinderbox conditions' in drought-stricken areas. The word carries a heavy 'semantic prosody,' meaning it is almost always used in negative or cautionary contexts. It suggests that the situation is beyond simple 'instability' and has reached a point where disaster is nearly inevitable without careful intervention. By using 'tinderbox,' you demonstrate an ability to use idiomatic and metaphorical English to describe high-intensity scenarios with sophistication and clarity. It is a favorite term for editorial writers and political analysts who want to emphasize the fragility of peace or order.

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For C1 learners, 'tinderbox' is a nuanced tool for sophisticated analysis of systemic volatility. It describes an environment characterized by such high levels of latent tension that a minor catalyst could precipitate a major crisis. At this level, you should appreciate the word's historical resonance and its ability to synthesize complex causal factors into a single, evocative metaphor. When you describe a financial market as a 'tinderbox of speculative debt,' you are implying that the system's internal logic is inherently unstable and prone to a sudden 'conflagration.' The word allows for a discussion of 'structural' versus 'proximate' causes: the tinderbox represents the structural conditions (long-term grievances, economic disparity), while the spark represents the proximate cause (a specific event). C1 speakers can use 'tinderbox' to critique policy, analyze history, or describe high-pressure social dynamics with precision. You might explore the 'tinderbox of identity politics' or the 'tinderbox of urban decay.' It is also useful to compare it with synonyms like 'powder keg' or 'flashpoint' to show a mastery of register and connotation. While 'powder keg' might suggest a more singular, explosive event, 'tinderbox' often emphasizes the 'dryness' and 'readiness' of the materials involved—the sense that the environment itself has been prepared for destruction. In academic or professional writing, 'tinderbox' serves as a powerful rhetorical device to warn of impending disaster, urging stakeholders to address the 'tinder' before a 'spark' occurs. It is a word that demands a high level of contextual awareness, as its misuse in a positive context would be a significant stylistic error.

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At the C2 level, the word 'tinderbox' is understood not just as a metaphor for danger, but as a precise descriptor of 'combustible sociopolitical or environmental equilibrium.' A C2 user recognizes the deep etymological roots of the word—from the Old English 'tynder'—and how its transition from a domestic necessity to a journalistic cliché reflects broader cultural shifts in how we perceive risk and causality. In a C2 context, 'tinderbox' can be used to dissect the 'path-dependency' of conflicts, where historical grievances accumulate like dry wood until the system reaches a critical state of 'auto-ignition.' You might use the term in a philosophical or sociological discourse to describe the 'tinderbox of the human psyche' under extreme stress, or in a geopolitical analysis to describe the 'tinderbox of maritime disputes' in the South China Sea. The word's utility lies in its ability to convey 'latent energy'—the idea that a situation is not currently in flames but possesses all the necessary ingredients for a total breakdown of order. C2 speakers can manipulate the metaphor, perhaps speaking of 'dampening the tinderbox' (reducing tension) or 'removing the tinder' (addressing root causes). You should also be aware of the word's 'intertextuality'—how its use in famous historical texts or speeches has shaped its modern meaning. Whether analyzing the 'tinderbox conditions' of the 19th-century industrial slums or the 'digital tinderbox' of modern social media algorithms, the C2 user employs the word with a sense of its full historical and rhetorical weight, using it to provide a compelling, high-level synthesis of volatility and risk.

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練習する例文メモとヒント

tinderbox 30秒で

A tinderbox is a metaphor for a highly volatile and dangerous situation that could explode into conflict at any moment.
The term originates from a historical metal box containing flint, steel, and flammable material used to start fires.
It is frequently used in news and history to describe political tension, social unrest, or extreme wildfire risks.
Commonly paired with verbs like 'ignite' or 'spark,' it emphasizes how a small event can cause a massive reaction.

The word tinderbox is a fascinating noun that bridges the gap between ancient survival technology and modern political commentary. Historically, a tinderbox was a small, portable container—often made of metal like brass or tin—that held the essential components for starting a fire before the invention of the friction match. Inside, one would find 'tinder' (highly flammable material like charred cloth, dried moss, or wood shavings), a piece of flint, and a steel 'striker.' To start a fire, a person would strike the flint against the steel to create sparks, which would hopefully land on the tinder and begin to glow. This literal object was a staple of every household for centuries, representing the fragile but necessary spark of life and warmth.

Historical Utility: In the 1700s, the tinderbox was the equivalent of a modern lighter, though much more difficult to use. It required dry conditions and patience, making it a symbol of preparation.

However, in contemporary English, you are far more likely to encounter 'tinderbox' used as a powerful metaphor. It describes a situation, a place, or a relationship that is so tense and volatile that the slightest 'spark'—a minor disagreement, a controversial statement, or a small incident—could cause a massive, uncontrollable 'fire' of violence, protest, or chaos. This figurative usage is ubiquitous in journalism, especially when describing geopolitical tensions or social unrest.

The border region has become a geopolitical tinderbox, where a single misunderstanding could trigger a full-scale war.

When people use this word today, they are tapping into a sense of impending doom or high-stakes fragility. It suggests that the environment is already 'dry' and 'ready to burn'; the danger isn't just possible, it is imminent. You might hear a sports commentator describe a heated rivalry as a tinderbox if the fans are particularly aggressive, or a historian might describe the city of Sarajevo in 1914 as a tinderbox.

Social Dynamics: Sociologists often use the term to describe urban areas where systemic inequality and police tension create a tinderbox environment ready to ignite into civil unrest.

The office atmosphere was a tinderbox after the announcement of the mass layoffs.

Years of drought have turned the national forest into a literal tinderbox.

The courtroom was a tinderbox as the verdict was read to the angry crowd.

His temper was a tinderbox, and his siblings knew exactly how to strike the flint.

Environmental Usage: In ecology, 'tinderbox' is used literally to describe forests with high fuel loads—dead wood and dry leaves—that are at extreme risk of wildfire.

Understanding 'tinderbox' requires recognizing the duality of its nature: the container that holds the potential for fire, and the fire itself that is waiting to happen. It is a word of warning, a linguistic red flag that signals the need for caution and de-escalation.

Using 'tinderbox' effectively involves understanding its role as a noun that usually functions as a subject complement or an object of a preposition. Because it is a metaphor, it is often paired with verbs like 'become,' 'turn into,' 'remain,' or 'act as.' For example, you might say, 'The city became a tinderbox.' This structure highlights a transformation from a state of peace to a state of extreme tension.

Verb Pairings: Common verbs used with tinderbox include: ignite, explode, spark, and smolder. These verbs extend the fire metaphor.

Another common way to use the word is with the preposition 'of.' You can describe a 'tinderbox of [emotion/situation].' For instance, 'a tinderbox of resentment' or 'a tinderbox of political intrigue.' This specifies what the 'tinder' actually is—what the underlying flammable material consists of.

The Middle East has often been described by historians as a tinderbox of conflicting religious and national interests.

When writing, you can also use 'tinderbox' as an adjective in a compound noun sense, though this is less common than its noun form. You might hear about 'tinderbox conditions' in a forest.

Prepositional Phrases: 'Sitting on a tinderbox' is a common idiomatic expression meaning to be in a very dangerous situation that could explode at any time.

By ignoring the workers' grievances, the CEO was essentially sitting on a tinderbox.

The refugee camp, overcrowded and undersupplied, was a human tinderbox.

The debate stage became a tinderbox as soon as the topic of taxes was raised.

The dry undergrowth turned the valley into a tinderbox during the heatwave.

Their marriage was a tinderbox of unspoken frustrations and old grudges.

Collocation with 'Literal': Speakers often use the phrase 'literal tinderbox' to clarify they are talking about fire hazards rather than social tension.

In academic writing, 'tinderbox' can be used to describe the 'precariousness' of a system. For example, 'The global financial system in 2007 was a tinderbox of subprime debt.' This usage conveys both the complexity and the inherent danger of the situation. By mastering these patterns, you can use 'tinderbox' to add dramatic weight and visual clarity to your descriptions of conflict and risk.

You will most frequently encounter the word tinderbox in the world of journalism and news broadcasting. Journalists love this word because it provides a vivid, shorthand way to describe a complex and dangerous situation. When a news anchor says, 'The capital city remains a tinderbox tonight,' they are instantly communicating that the atmosphere is tense, the people are angry, and violence could break out at any second. It is a staple of international reporting, particularly in regions experiencing long-term conflict or sudden political shifts.

News Media: Headlines like 'A Tinderbox in the Balkans' or 'The Housing Market: A Financial Tinderbox' are common in publications like The Economist or The New York Times.

Beyond the news, 'tinderbox' is a favorite in historical documentaries and textbooks. Historians use it to explain the 'causes' of wars. They might describe Europe in the early 20th century as a tinderbox of alliances and imperial ambitions, where the assassination of Archduke Franz Ferdinand was the 'spark' that set it off. This 'spark and tinderbox' analogy is one of the most common ways history is taught in the English-speaking world.

The documentary described the 1960s as a social tinderbox of civil rights and anti-war sentiment.

You will also find it in literature, especially in thrillers or political dramas. Authors use it to build suspense. If a character enters a room that is described as a 'tinderbox,' the reader knows that a confrontation is coming. It creates an immediate sense of 'atmospheric pressure.'

Literature and Film: In movies, a 'tinderbox' might be a prison where a riot is brewing or a small town with a dark secret.

The detective realized the local gang war had turned the neighborhood into a tinderbox.

Environmentalists warned that the dry brush near the suburbs was a tinderbox waiting for a lightning strike.

The stadium was a tinderbox after the referee's controversial decision.

The negotiation room was a tinderbox, with both sides refusing to budge.

The political climate in the country is a tinderbox ahead of the elections.

Podcast and Commentary: Political podcasters often use the term to describe 'culture wars' or social media outrage cycles.

In summary, if you are reading about conflict, risk, or high-stakes tension, you are likely to see 'tinderbox.' It is a word that paints a picture of a world on the edge, where the balance between peace and disaster is paper-thin.

Despite its vivid imagery, 'tinderbox' is sometimes misused by learners and native speakers alike. One of the most common mistakes is confusing it with other 'box' words, such as 'toolbox' or 'firebox.' While a firebox is a part of a steam engine where fuel is burned, a tinderbox is the *potential* for fire. Using 'firebox' to describe a volatile situation would be incorrect and confusing.

Literal vs. Metaphorical: Don't use 'tinderbox' to mean a place where fires are *kept* safely. It implies a place where fire is *unwanted* and *explosive*.

Another frequent error is using 'tinderbox' to describe a situation that is merely 'exciting' or 'energetic.' For example, saying 'The party was a tinderbox of fun' is a misuse of the word's semantic prosody. 'Tinderbox' almost always carries a negative or dangerous connotation. It implies a threat of destruction, not just high energy. If a situation is 'explosively fun,' words like 'electric' or 'vibrant' are better choices.

Incorrect: The children's birthday party was a tinderbox of laughter. (Too negative for the context.)

Confusing with 'Tinder': In the modern era, some people mistakenly associate the word with the dating app 'Tinder.' While the app's name comes from the same root (starting a 'spark'), a 'tinderbox' has nothing to do with dating.

Correct: The strike negotiations are a tinderbox; one wrong word could end the talks.

Correct: The dry forest is a tinderbox after three months without rain.

Incorrect: He has a tinderbox of ideas. (Better: A 'wealth' or 'fountain' of ideas.)

Correct: The prison yard was a tinderbox during the heatwave.

Correct: The political debate turned the living room into a tinderbox.

Overuse: Because it is a 'cliché' in journalism, overusing 'tinderbox' can make your writing feel unoriginal. Try to vary it with 'powder keg' or 'flashpoint.'

Finally, some people forget that 'tinderbox' is a single word. Writing it as 'tinder box' (two words) is acceptable in a literal historical context, but the metaphorical noun is almost always written as one word. By avoiding these pitfalls, you can use 'tinderbox' with the precision of a master communicator.

When you want to describe a volatile situation but feel that 'tinderbox' isn't quite right, or if you've already used it and want to avoid repetition, there are several excellent alternatives. The most direct synonym is powder keg. This metaphor comes from the barrels of gunpowder kept on old ships or in forts. Like a tinderbox, a powder keg is a container of potential destruction. However, 'powder keg' often implies a larger, more explosive scale of violence, whereas 'tinderbox' emphasizes the ease with which a fire can start.

Tinderbox vs. Powder Keg: Use 'tinderbox' for situations that feel 'dry' and 'ready to catch fire.' Use 'powder keg' for situations that feel 'heavy' and 'ready to explode.'

Another great alternative is flashpoint. A flashpoint is the specific moment or place where a conflict breaks out. While a tinderbox is the *state* of the environment, the flashpoint is the *trigger*. For example, 'The border dispute was the flashpoint that ignited the tinderbox of regional tensions.'

The city was a powder keg of racial tension during the trial.

Other Alternatives: Consider: minefield (focuses on hidden dangers), pressure cooker (focuses on internal stress), or volcano (focuses on a long-brewing eruption).

Navigating the office politics was like walking through a minefield.

The high-stakes project turned the department into a pressure cooker.

The disputed territory remains a flashpoint for international relations.

The region is a hotbed of extremist activity.

The situation is highly combustible.

Register Differences: 'Tinderbox' and 'powder keg' are literary and journalistic. 'Volatile' is academic/professional. 'Ready to blow' is informal/slang.

In summary, while 'tinderbox' is a unique and powerful word, knowing its synonyms allows you to tailor your language to the specific type of danger or tension you are describing. Whether it's the hidden dangers of a minefield or the internal pressure of a pressure cooker, each word offers a slightly different 'flavor' of volatility.

How Formal Is It?

豆知識

Before the 1830s, if you wanted a fire, you spent about 2-3 minutes striking a tinderbox. Matches were a revolutionary invention that made the tinderbox obsolete almost overnight.

発音ガイド

UK /ˈtɪndəbɒks/

US /ˈtɪndərbɑːks/

The primary stress is on the first syllable: TIN-der-box.

韻が合う語

hinder box cinder box winter box splinter box printer box flint box silver fox orthodox

よくある間違い

Pronouncing 'tinder' like 'tender' (ten-der).
Putting the stress on 'box' instead of 'tin'.
Confusing the 'i' sound with a long 'e' (teenderbox).
Missing the 'r' sound in American English.
Pronouncing 'box' with a long 'o' sound.

難易度

読解 3/5

Common in news and books, easy to recognize from context.

ライティング 4/5

Requires understanding of metaphor to use correctly without sounding cliché.

スピーキング 4/5

Not common in casual speech; sounds a bit dramatic for everyday use.

リスニング 3/5

Easy to hear in news broadcasts and documentaries.

次に学ぶべきこと

前提知識

fire box dangerous dry angry

次に学ぶ

volatile combustible precarious catalyst incendiary

上級

conflagration instability geopolitics stratification detonation

知っておくべき文法

Metaphorical Nouns

Using 'tinderbox' as a subject complement: 'The city is a tinderbox.'

Indefinite Articles with States

We use 'a' because 'tinderbox' describes a type of situation: 'It was a tinderbox.'

Prepositional Phrases with 'Of'

Using 'of' to define the cause: 'A tinderbox of anger.'

Verb-Noun Collocation

Pairing with 'ignite' or 'spark': 'The spark ignited the tinderbox.'

Compound Adjectives

Using 'tinderbox-dry' to modify a noun: 'The tinderbox-dry leaves.'

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レベル別の例文

The old box was a tinderbox.

The old box was a tool for fire.

Simple subject-verb-complement structure.

Be careful, this forest is a tinderbox.

The forest is very dry and dangerous.

Using 'tinderbox' as a metaphor for fire risk.

The tinderbox helps start a fire.

The tool is used to make fire.

Literal usage of the noun.

Is that a tinderbox?

Are you holding a fire-starting box?

Interrogative sentence.

He has a small tinderbox.

He owns a little fire box.

Using an adjective with the noun.

The tinderbox is in the kitchen.

The fire tool is in the room.

Prepositional phrase for location.

We need a tinderbox for the campfire.

We need the tool to start the fire.

Using 'for' to show purpose.

The tinderbox is very old.

The box has many years.

Simple descriptive sentence.

The dry grass made the field a tinderbox.

The grass made the field very dangerous for fire.

The verb 'made' shows cause and effect.

The city was a tinderbox after the news.

People were very angry and ready to fight.

Metaphorical usage for social tension.

Don't drop that match; this place is a tinderbox!

This place will burn easily.

Imperative followed by a warning.

The history museum has a tinderbox from 1800.

The museum shows an old fire tool.

Literal usage in a historical context.

The classroom became a tinderbox when the students started arguing.

The room became very tense.

The verb 'became' shows a change in state.

A tinderbox contains flint and steel.

The box has these two things inside.

Describing the components of the noun.

The drought turned the hills into a tinderbox.

The lack of rain made the hills dangerous.

Phrasal verb 'turned into'.

The political meeting was a tinderbox of angry people.

The meeting was full of tension.

Using 'of' to describe the contents of the metaphor.

The border region is a geopolitical tinderbox.

The area is very dangerous for international relations.

Using a complex adjective 'geopolitical'.

One wrong word could ignite this tinderbox.

A small mistake could start a big fight.

Using 'ignite' to extend the fire metaphor.

The prison has become a tinderbox due to overcrowding.

The prison is very dangerous because there are too many people.

Using 'due to' to explain the cause.

Historians describe the 1914 Balkans as a tinderbox.

The region was ready for war in 1914.

Reporting what historians say.

The company’s decision to cut wages created a tinderbox.

The decision made the workers very angry.

The verb 'created' shows the result of an action.

Living in that neighborhood felt like sitting on a tinderbox.

It felt very dangerous to live there.

Using the idiom 'sitting on a tinderbox'.

The dry summer has left the national park a tinderbox.

The park is now a fire hazard.

The verb 'left' describes the resulting state.

The debate stage was a tinderbox of conflicting ideologies.

The debate was full of very different and angry ideas.

Abstract usage of 'tinderbox'.

The social media platform has become a tinderbox of outrage.

The website is full of angry people ready to argue.

Applying the metaphor to modern technology.

Economic inequality is the tinder that turns a society into a tinderbox.

Poverty makes a country dangerous and unstable.

Distinguishing between the 'tinder' (material) and the 'tinderbox' (situation).

The peace treaty is fragile, and the region remains a tinderbox.

The peace might not last because the area is still tense.

Using 'remains' to show a continuing state.

The courtroom was a tinderbox as the controversial verdict was read.

The room was extremely tense during the legal decision.

Using 'as' to show simultaneous actions.

Years of neglect had turned the housing project into a social tinderbox.

Ignoring the buildings made the people there very angry.

Past perfect tense 'had turned'.

The coach's comments added fuel to the tinderbox of the rivalry.

The coach made the angry situation even worse.

Mixing metaphors: 'added fuel' and 'tinderbox'.

Firefighters are on high alert because the valley is a literal tinderbox.

The valley is at very high risk of a real fire.

Using 'literal' for emphasis.

The atmosphere in the locker room was a tinderbox after the loss.

The players were very angry and ready to fight each other.

Situational usage in sports.

The sudden collapse of the bank acted as the spark in a financial tinderbox.

The bank failure started a crisis in an already unstable market.

Sophisticated 'spark and tinderbox' analogy.

The city’s disparate demographics created a tinderbox of ethnic tension.

The different groups in the city were very close to a conflict.

Using academic vocabulary like 'disparate demographics'.

Rhetoric from both leaders is turning the diplomatic standoff into a tinderbox.

What the leaders say is making the situation very dangerous.

Using 'rhetoric' and 'standoff'.

The documentary explores how systemic injustice created an urban tinderbox.

The film shows how unfairness led to a dangerous city environment.

Using 'systemic injustice'.

The merger of the two rival companies proved to be a corporate tinderbox.

Combining the companies caused a lot of internal conflict.

Applying the term to a business context.

The governor is struggling to manage the tinderbox of public health and economic needs.

The governor is trying to balance two very tense and difficult issues.

Using 'tinderbox' to describe a delicate balance of needs.

The region’s history of colonial exploitation has left it a perpetual tinderbox.

The area is always dangerous because of its past.

Using 'perpetual' to show a permanent state.

The internet’s anonymity can transform a simple debate into a vitriolic tinderbox.

Being anonymous online makes people very angry and aggressive.

Using 'vitriolic' to describe the intensity.

The precarious equilibrium of the coalition government is a political tinderbox.

The government is very unstable and could fall apart at any moment.

Using 'precarious equilibrium' and 'coalition government'.

The philosopher argued that modern society is a tinderbox of existential dread.

People today are so worried about life that they are ready to explode.

Abstract, philosophical application of the metaphor.

The treaty failed to address the underlying grievances, leaving the region a smoldering tinderbox.

The deal didn't fix the real problems, so the area is still dangerous.

Using 'smoldering' to suggest a fire that hasn't quite started yet.

The intersection of climate change and resource scarcity is creating a global tinderbox.

Environment and lack of food/water are making the world very dangerous.

Using 'intersection' to show how two problems meet.

The playwright used the setting of a small, isolated town to create a psychological tinderbox.

The writer made the town feel very tense and dangerous for the characters.

Literary analysis of a setting.

The rapid deregulation of the industry created a tinderbox of systemic risk.

Removing rules made the whole industry very dangerous and unstable.

Using 'deregulation' and 'systemic risk'.

His volatile temperament was a tinderbox that his enemies were all too happy to ignite.

His anger was a weakness that his rivals used against him.

Describing a personality trait metaphorically.

The city’s architecture, a maze of wooden tenements, was a literal tinderbox in the 1800s.

The way the city was built made it a huge fire hazard in the past.

Historical and literal usage combined.

よく使う組み合わせ

geopolitical tinderbox

literal tinderbox

social tinderbox

ignite the tinderbox

tinderbox of resentment

tinderbox conditions

sitting on a tinderbox

potential tinderbox

urban tinderbox

smoldering tinderbox

よく使うフレーズ

A tinderbox of [something]

— A situation full of a specific dangerous element.

A tinderbox of emotions.

Turn into a tinderbox

— To become very dangerous and volatile.

The meeting quickly turned into a tinderbox.

Ready to ignite

— Often used alongside tinderbox to show how close it is to exploding.

The tinderbox is ready to ignite.

The spark that lit the tinderbox

— The specific event that started the big conflict.

The tax hike was the spark that lit the tinderbox.

A geopolitical tinderbox

— A region where international war is likely.

The Middle East is a geopolitical tinderbox.

A literal tinderbox

— Used to describe real fire hazards like dry wood.

The warehouse was a literal tinderbox.

A human tinderbox

— A crowd of people who are very angry and ready to riot.

The stadium was a human tinderbox.

A financial tinderbox

— An economy that is about to crash.

The housing bubble was a financial tinderbox.

Act as a tinderbox

— To serve as the environment for a conflict.

The prison acted as a tinderbox for the riot.

Avoid the tinderbox

— To try to stay away from a volatile situation.

Diplomats are trying to avoid the tinderbox.

よく混同される語

tinderbox vs toolbox

A toolbox holds tools; a tinderbox holds potential fire/danger.

tinderbox vs firebox

A firebox is where fire is controlled (in an engine); a tinderbox is where fire is uncontrolled/explosive.

tinderbox vs tinder

Tinder is the material; tinderbox is the container or the whole situation.

慣用句と表現

"Sitting on a tinderbox"

— Being in a situation that could become very dangerous at any moment.

With the current inflation, the country is sitting on a tinderbox.

Informal/Neutral

"Adding fuel to the fire"

— Making a tinderbox situation even worse.

His angry comments just added fuel to the fire.

Common Idiom

"The spark that set it off"

— The small event that causes a tinderbox to explode.

The arrest was the spark that set off the tinderbox.

Neutral

"Walking on eggshells"

— Trying to be very careful in a tinderbox situation.

In that office, everyone is walking on eggshells.

Informal

"A powder keg waiting to explode"

— A very similar idiom to tinderbox.

The city is a powder keg waiting to explode.

Journalistic

"Playing with fire"

— Taking risks in a tinderbox situation.

By ignoring the warnings, he is playing with fire.

Informal

"The calm before the storm"

— The quiet period before a tinderbox ignites.

The silence in the streets was the calm before the storm.

Neutral

"At a breaking point"

— When a tinderbox situation can no longer be controlled.

The healthcare system is at a breaking point.

Neutral

"Under the surface"

— Where the 'tinder' or tension is hidden.

Anger was bubbling just under the surface.

Neutral

"A ticking time bomb"

— Another metaphor for a tinderbox situation.

The old bridge is a ticking time bomb.

Informal

間違えやすい

tinderbox vs Powder keg

Both mean a volatile situation.

Powder keg implies a sudden, loud explosion; tinderbox implies a fire that spreads quickly.

The protest was a powder keg; the dry forest was a tinderbox.

tinderbox vs Flashpoint

Both relate to conflict.

Flashpoint is the *location* or *moment* of ignition; tinderbox is the *state* of the environment.

The border was the flashpoint for the tinderbox of regional tension.

tinderbox vs Pressure cooker

Both describe tension.

Pressure cooker implies internal stress building up; tinderbox implies external readiness to burn.

The exam room was a pressure cooker; the riot-torn street was a tinderbox.

tinderbox vs Minefield

Both describe danger.

Minefield implies hidden, scattered dangers; tinderbox implies a general atmosphere of volatility.

Office politics is a minefield; the strike is a tinderbox.

tinderbox vs Hotbed

Both describe a place with a lot of activity.

Hotbed implies a place where something grows or develops (like crime); tinderbox implies a place ready to explode.

The city is a hotbed of crime and a tinderbox of social anger.

文型パターン

The [noun] is a tinderbox.

The box is a tinderbox.

The [place] became a tinderbox.

The city became a tinderbox.

It is a tinderbox of [emotion].

It is a tinderbox of resentment.

The [event] ignited the tinderbox.

The speech ignited the tinderbox.

The [complex noun] acted as a tinderbox.

The systemic inequality acted as a tinderbox.

A precarious tinderbox of [abstract noun].

A precarious tinderbox of existential anxiety.

Sitting on a tinderbox.

The manager is sitting on a tinderbox.

Literal tinderbox conditions.

The valley faces literal tinderbox conditions.

語族

名詞

tinder (the material)

tinderbox (the container/situation)

動詞

tinder (rarely used as a verb meaning to ignite)

形容詞

tinder-dry (extremely dry and flammable)

使い方

frequency

Common in written news; moderate in spoken news; rare in casual conversation.

よくある間違い

Using it for a fun situation. → The party was electric.
Tinderbox is negative and implies danger, not just high energy.
Writing 'tinder box' for the metaphor. → The city was a tinderbox.
The metaphorical noun is almost always a single word.
Confusing it with 'toolbox'. → I need my toolbox to fix the car.
A tinderbox is for fire; a toolbox is for repairs.
Using 'firebox' instead. → The region is a tinderbox.
A firebox is a specific part of an engine; it doesn't mean a volatile situation.
Saying 'a tinderbox of peace'. → A haven of peace.
Tinderbox is semantically negative; it cannot be used with positive concepts like peace.

ヒント

Use for High Tension

Save 'tinderbox' for situations that feel truly dangerous. Don't use it for a small argument between friends.

Combine with Verbs

Use verbs like 'ignite,' 'spark,' or 'explode' to make your metaphor stronger and more visual.

Learn the Synonyms

Learn 'powder keg' and 'flashpoint' so you don't repeat 'tinderbox' too many times in one essay.

Understand the Origin

Knowing it was a real tool helps you remember that it needs 'tinder' (problems) and a 'spark' (an event).

Watch Your Tone

When you say 'tinderbox,' use a serious voice. It is a word that signals a warning or a grave situation.

Check the Context

If you see it in a history book, it might be literal. If you see it in a news app, it is almost certainly metaphorical.

Countable Noun

Remember it is a countable noun. You can say 'The world has many geopolitical tinderboxes.'

The Spark Analogy

Always look for the 'spark.' A tinderbox isn't just dangerous; it's waiting for something to happen.

Avoid Overuse

Because it's a common news word, try to use it sparingly so your writing stays fresh.

Literal Fire Risk

In environmental contexts, it is a very serious warning about real wildfires.

暗記しよう

記憶術

Think of 'Tinder' (the app) + 'Box.' The app is for 'sparks' between people. A 'Tinder-Box' is a box full of sparks and fire. It’s a situation ready to burn!

視覚的連想

Imagine a box full of very dry, yellow grass and a single match hovering over it. The grass is the 'tinder,' and the whole scene is the 'tinderbox.'

Word Web

fire danger tension politics drought spark explosion volatility

チャレンジ

Try to find a news article today about a conflict. Can you replace the word 'conflict' or 'tension' with 'tinderbox' in your head? Does it make the sentence feel more dramatic?

語源

Derived from the Old English word 'tynder' (meaning material for lighting a fire) and the word 'box.' It has been used since the 14th century.

元の意味： A literal box containing tinder, flint, and steel.

Germanic (Old English/Middle English).

文化的な背景

Be careful when using it to describe specific ethnic or religious groups, as it can sound like you are calling them naturally violent. Use it to describe the *situation*, not the *people* themselves.

Commonly used in UK and US media to describe strikes, protests, and international borders.

Hans Christian Andersen's fairy tale 'The Tinderbox' (about a magical fire-starting box). Historical descriptions of pre-WWI Europe. Environmental warnings about the California wildfires.

実生活で練習する

実際の使用場面

Politics

diplomatic tinderbox
political tinderbox
border tinderbox
election tinderbox

Environment

literal tinderbox
forest tinderbox
drought tinderbox
tinderbox conditions

Social Issues

urban tinderbox
racial tinderbox
social tinderbox
tinderbox of unrest

Workplace

corporate tinderbox
office tinderbox
tinderbox of stress
negotiation tinderbox

History

historical tinderbox
colonial tinderbox
the tinderbox of Europe
revolutionary tinderbox

会話のきっかけ

"Do you think the current political climate in your country is a tinderbox?"

"Have you ever been in a meeting that felt like a tinderbox?"

"What do you think is the biggest geopolitical tinderbox in the world right now?"

"How can leaders prevent a social tinderbox from exploding into violence?"

"Is the dry weather making the forests near you a tinderbox this year?"

日記のテーマ

Describe a time when a small 'spark' caused a 'tinderbox' situation in your personal life.

Write about a historical event that you would describe as a tinderbox. What was the tinder and what was the spark?

How does social media act as a tinderbox for public outrage? Give specific examples.

Imagine a future where the whole world is a tinderbox. What caused it and how do people survive?

Reflect on the difference between a 'literal tinderbox' and a 'metaphorical' one. Which is more dangerous?

よくある質問

10 問

It is almost always negative. It describes danger, violence, or disaster. You would not use it to describe a happy or safe situation.

Yes, metaphorically. You can say someone has a 'tinderbox temperament,' meaning they get angry very easily. However, it is more common for situations.

'Tinder' is the dry material that catches fire. A 'tinderbox' is the container for that material, or the situation that contains all the elements for a conflict.

In modern English, it is usually written as one word: 'tinderbox.' 'Tinder box' (two words) is sometimes used for the literal historical object.

Because it is very descriptive. It creates a strong mental image of fire and danger, which helps grab the reader's attention.

The app is named after the word 'tinder' (to start a spark), but 'tinderbox' is a much older word and has no connection to the app's function.

This usually refers to a forest or building that is so dry and full of flammable material that it is a massive fire hazard.

Yes. A 'smoldering tinderbox' is a situation where the tension is already starting to turn into small fights, but hasn't become a full riot yet.

The spark is the specific event (like a tweet, a law, or an arrest) that causes the tense situation to finally explode into violence.

It is used in both! It is a standard word across all major English dialects.

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