At the A1 beginner level, learners are introduced to the most basic and essential vocabulary needed for survival communication. While 'diminuer' is technically a B1 word due to its slightly abstract nature, an A1 learner might encounter it when learning opposites. The concept of 'going up' versus 'going down' is fundamental. At this stage, learners focus on simple, concrete actions. They might learn 'diminuer' simply as the opposite of 'augmenter' (to increase). The focus is entirely on the present tense conjugation: je diminue, tu diminues, il diminue. An A1 student would use it in very short, simple sentences, such as 'Le prix diminue' (The price decreases) or 'Je diminue le son' (I turn down the sound). They are not expected to understand the nuances between transitive and intransitive uses, nor are they expected to use it with complex prepositions. The primary goal is recognition and basic production in highly predictable, everyday contexts, such as shopping (prices going down) or interacting with devices (turning down volume). It serves as a building block for more complex expressions of change later on.
At the A2 elementary level, learners begin to expand their ability to describe their environment and daily routines. 'Diminuer' becomes more actively used. Learners at this stage can use the verb in the passé composé (j'ai diminué) to talk about completed actions in the past, and the futur proche (je vais diminuer) to discuss immediate plans. They start to use it to describe personal habits and simple trends. For example, an A2 learner might say 'Je vais diminuer le sucre' (I am going to decrease sugar) when talking about a diet, or 'La pluie a diminué' (The rain has decreased) when talking about the weather. They also begin to understand simple instructions using the imperative form, such as 'Diminuez le volume, s'il vous plaît' (Turn down the volume, please). The vocabulary around the verb expands slightly, but the focus remains on concrete, everyday situations rather than abstract concepts. They learn to pair it with common nouns like 'le prix', 'le bruit', and 'la quantité'.
The B1 intermediate level is where 'diminuer' is officially categorized and where its usage blossoms. At this stage, learners are expected to handle a wider variety of topics, including abstract concepts, opinions, and general trends. 'Diminuer' is crucial for this. B1 learners use it to discuss societal issues, such as 'diminuer le chômage' (decreasing unemployment) or 'diminuer la pollution' (decreasing pollution). They master the use of the preposition 'de' to express specific amounts of change: 'Le prix a diminué de 10 euros'. They comfortably navigate both the transitive (I decrease something) and intransitive (something decreases) uses of the verb. Furthermore, they begin to use it in various tenses, including the imparfait for ongoing past trends ('les ventes diminuaient') and the conditionnel for hypothetical situations ('il faudrait diminuer les impôts'). At B1, 'diminuer' is a highly active, versatile tool used to express opinions, analyze simple data, and discuss cause and effect in both spoken and written French.
At the B2 upper-intermediate level, learners refine their use of 'diminuer' and begin to integrate it into more complex grammatical structures and nuanced discussions. They are expected to argue, persuade, and analyze in depth. 'Diminuer' is used in the subjunctive mood to express necessity or desire: 'Il est essentiel que nous diminuions nos dépenses' (It is essential that we decrease our expenses). B2 learners also start to distinguish 'diminuer' from its synonyms like 'réduire', 'baisser', and 'atténuer', choosing the most appropriate word for the specific context. They use it in passive constructions ('Le budget a été diminué') and with a wider range of abstract nouns (e.g., 'diminuer les risques', 'diminuer l'impact'). The verb is employed fluidly in debates about the economy, environment, and politics. They also understand and use nominalizations, recognizing 'la diminution' as the noun form and using it to create more formal, sophisticated sentences typical of B2-level essays and presentations.
At the C1 advanced level, the use of 'diminuer' is characterized by precision, stylistic variation, and an effortless command of complex syntax. C1 speakers use the verb in highly formal and academic contexts, such as writing reports, analyzing complex statistical data, or discussing nuanced philosophical or scientific concepts. They might use advanced structures like the gerund ('en diminuant les coûts, l'entreprise a survécu') or the past anterior in literary contexts. While they still use 'diminuer', they frequently opt for more specific or elevated synonyms ('amoindrir', 'atténuer', 'décroître') to avoid repetition and demonstrate lexical richness. They understand subtle idiomatic uses and collocations. At this level, 'diminuer' is just one well-worn tool in a vast vocabulary toolkit, used flawlessly without hesitation regarding transitivity, auxiliary verbs, or prepositional attachments. They can manipulate the verb to convey subtle shades of meaning, irony, or emphasis in both professional and social environments.
At the C2 mastery level, the learner's command of 'diminuer' is indistinguishable from that of a highly educated native speaker. They possess an intuitive grasp of the verb's rhythm, register, and cultural resonance. C2 speakers can play with the word, using it in creative or unconventional ways for rhetorical effect. They are intimately familiar with its etymology and how it relates to other words in the Romance language family. They can effortlessly switch between 'diminuer' and a dozen other related verbs, selecting the absolute perfect word for the microscopic nuance they wish to convey. They might use it in complex literary analyses, high-level diplomatic negotiations, or sophisticated academic publications. At C2, the focus is not on how to use the word grammatically—that is entirely automatic—but on how to deploy it strategically within a broader discourse to persuade, entertain, or elucidate complex truths with maximum elegance and impact.

diminuer in 30 Seconds

  • Regular -er verb meaning 'to decrease' or 'to reduce'.
  • Can be used with or without a direct object.
  • Takes 'avoir' in the passé composé.
  • Opposite of 'augmenter' (to increase).

The French verb 'diminuer' is a fundamental vocabulary word that translates to 'to decrease', 'to reduce', or 'to diminish' in English. It is an essential term for anyone learning French, particularly at the B1 level, as it allows speakers to describe negative trends, reductions in size, lower quantities, and diminishing intensities. Understanding how to use 'diminuer' effectively is crucial for discussing a wide range of topics, from economics and statistics to personal health and daily habits. When you want to express that something is becoming smaller in size, amount, intensity, or degree, 'diminuer' is the go-to word. For example, you might talk about decreasing prices, reducing stress, or diminishing returns. It is the direct opposite of 'augmenter' (to increase), and these two verbs are often learned together as a pair of antonyms. In academic and professional contexts, 'diminuer' is frequently used to analyze trends, report on data, and propose solutions to problems. In everyday conversation, it is just as common, used when talking about turning down the volume, eating less sugar, or spending less money. The versatility of 'diminuer' makes it an essential component of the B1 vocabulary toolkit. As learners progress to higher CEFR levels, they will encounter more nuanced synonyms like 'réduire', 'baisser', 'atténuer', and 'amoindrir', but 'diminuer' remains the most versatile and widely understood option. Mastery of this verb involves not only knowing its translation but also understanding its syntax—it can be used transitively (with a direct object) or intransitively (without a direct object). This dual nature adds to its utility. Furthermore, related words such as 'la diminution' (the decrease) and 'diminutif' (diminutive) expand the learner's lexical range. Pronounced /di.mi.nɥe/, it flows smoothly in spoken French. Paying attention to the context in which native speakers use 'diminuer' will reveal its subtle shades of meaning and help learners incorporate it naturally into their own active vocabulary. Whether you are writing a formal essay on environmental policies aimed at decreasing pollution or simply asking someone to lower the heating in a room, 'diminuer' is the precise and appropriate choice. Its widespread use across different registers—from casual chats to formal news broadcasts—underscores its importance. By practicing its conjugation in various tenses, such as the passé composé and the futur simple, learners can confidently deploy this verb in any situation. In summary, the journey to fluency in French is significantly aided by a deep and comprehensive understanding of the verb 'diminuer', its applications, its collocations, and its role in the broader structure of the language.

Transitive Use
When used with a direct object, it means to actively reduce something.
Intransitive Use
When used without an object, it means something is decreasing on its own.
Figurative Use
Can be used to describe the lessening of abstract concepts like pain or influence.

Il faut diminuer le volume de la télévision.

La douleur commence à diminuer lentement.

Nous devons diminuer nos dépenses mensuelles.

Le nombre d'étudiants a diminué cette année.

Elle a diminué sa consommation de sucre.

Using 'diminuer' correctly in French requires an understanding of its grammatical flexibility and the contexts in which it is most appropriate. As a regular verb of the first group (ending in -er), its conjugation follows the standard patterns that learners memorize early on. In the present tense, it is conjugated as je diminue, tu diminues, il/elle diminue, nous diminuons, vous diminuez, ils/elles diminuent. In the passé composé, it uses the auxiliary verb 'avoir' (j'ai diminué), which is straightforward. However, the true mastery of 'diminuer' lies in understanding its dual function as both a transitive and an intransitive verb. When used transitively, 'diminuer' takes a direct object. This means the subject of the sentence is actively performing the action of reducing something else. For example, in the sentence 'Le gouvernement veut diminuer les impôts' (The government wants to decrease taxes), 'les impôts' is the direct object being reduced by the government. This structure is incredibly common in news reports, business discussions, and everyday problem-solving. On the other hand, when used intransitively, 'diminuer' does not take a direct object. In this case, the subject of the sentence is the thing that is decreasing. For instance, 'La température diminue' (The temperature is decreasing). Here, the temperature is undergoing the change itself. This intransitive use is frequently seen in descriptions of weather, statistics, health conditions, and natural phenomena. It is important to note that unlike some verbs that change their auxiliary verb in the passé composé depending on whether they are transitive or intransitive (like 'descendre' or 'passer'), 'diminuer' almost always uses 'avoir' in modern standard French, regardless of its transitivity. 'Les prix ont diminué' (Prices have decreased) and 'J'ai diminué les prix' (I decreased the prices) both use 'avoir'. Beyond basic syntax, 'diminuer' is often followed by prepositions to add specific details. For example, 'diminuer de' is used to state the amount by which something has decreased: 'Le chômage a diminué de 5%' (Unemployment decreased by 5%). This is a critical structure for anyone taking business French or analyzing data. Additionally, 'diminuer dans' can be used to describe a decrease within a specific area or context. Understanding these nuances allows learners to construct more complex and precise sentences, moving beyond simple statements to detailed descriptions of change and trends.

With Quantities
Use 'diminuer de' to specify the exact amount of the decrease.
With Objects
Directly follow the verb with the noun being reduced.
In Passive Voice
Can be used passively, though active intransitive is more common.

Le budget a été diminué par la direction.

Ses chances de réussite ont diminué.

Je vais diminuer la vitesse de la voiture.

Le stress diminue avec la méditation.

Ils ont diminué le prix de moitié.

The verb 'diminuer' is ubiquitous in the French-speaking world, appearing across a vast array of contexts, from the most formal news broadcasts to casual, everyday conversations. If you turn on a French news channel like France 24 or listen to a radio station like France Inter, you are almost guaranteed to hear 'diminuer' within the first hour. It is the standard verb used by journalists, economists, and politicians to discuss national and global trends. You will hear it in reports about inflation ('l'inflation a diminué'), unemployment rates ('le taux de chômage diminue'), environmental issues ('diminuer les émissions de gaz à effet de serre'), and public health ('le nombre de cas diminue'). In these formal settings, it is often accompanied by precise statistics and formal vocabulary. However, 'diminuer' is not restricted to high-level discourse. It is equally common in everyday life. If you are cooking with a French recipe, you might be instructed to 'diminuer le feu' (turn down the heat) to let a sauce simmer. If you are at a doctor's appointment in a Francophone country, the physician might advise you to 'diminuer le sel' (reduce salt) in your diet to lower your blood pressure. In the workplace, a manager might talk about the need to 'diminuer les coûts' (cut costs) or 'diminuer le temps d'attente' (reduce wait times) for customers. Even in personal relationships, someone might express a desire to 'diminuer les tensions' (reduce tensions) after an argument. The word also frequently appears in written French, from newspaper articles and academic papers to instructional manuals and personal emails. In literature, it can be used more poetically to describe fading light ('la lumière diminuait') or waning hope ('son espoir diminuait'). Because it is such a core vocabulary word, learners will encounter it in listening comprehension exercises, reading passages, and standard proficiency exams like the DELF B1 and B2. Recognizing 'diminuer' and understanding its context is therefore essential for achieving fluency. It is a word that bridges the gap between basic survival French and the ability to engage in complex, meaningful discussions about the world and one's place in it. By paying attention to where and how native speakers use this verb, learners can greatly enhance their own communicative competence.

News Media
Frequently used to report on economic and social statistics.
Medical Contexts
Used by doctors advising patients to reduce intake of certain foods.
Culinary Contexts
Common in recipes to instruct lowering the cooking temperature.

Le présentateur a annoncé que le chômage a diminué.

Le médecin m'a dit de diminuer le café.

Il faut diminuer le feu pour que ça mijote.

L'entreprise cherche à diminuer son empreinte carbone.

La lumière du jour diminue en hiver.

While 'diminuer' is a relatively straightforward verb, learners of French often make a few common mistakes when using it, primarily related to preposition usage, synonym confusion, and auxiliary verb selection. One of the most frequent errors occurs when learners try to express the amount by which something has decreased. English speakers naturally want to translate 'decreased by 10%' directly, sometimes leading to incorrect prepositions like 'diminué par 10%'. The correct French structure requires the preposition 'de': 'diminué de 10%'. Using 'par' in this context is a classic anglicism that immediately marks the speaker as a non-native. Another common mistake involves confusing 'diminuer' with its synonyms, particularly 'baisser' and 'réduire'. While they are often interchangeable, there are subtle differences in usage. 'Baisser' is generally used for things that physically go down or lower in level (like prices, temperature, or a window), whereas 'diminuer' is broader and can apply to volume, intensity, and abstract concepts. 'Réduire' often implies a more active, intentional cutting down or shrinking (like reducing a sauce in cooking or reducing a sentence in law). Using 'diminuer' when 'baisser' is more idiomatic (e.g., saying 'diminuer la tête' instead of 'baisser la tête' for 'to lower one's head') can sound awkward. Furthermore, learners sometimes struggle with the auxiliary verb in the passé composé. Because 'diminuer' can be intransitive and indicates a change of state, some learners mistakenly assume it should take 'être' as its auxiliary, similar to verbs like 'devenir' or 'tomber'. However, 'diminuer' always takes 'avoir' in modern standard French: 'La fièvre a diminué' (The fever has decreased), not 'La fièvre est diminuée'. Finally, a minor but persistent spelling mistake is forgetting the 'i' after the 'm', spelling it 'dimnuer' or confusing the vowels. Pronunciation can also be tricky; the sequence of vowels in the infinitive /di.mi.nɥe/ requires careful articulation to avoid sounding like 'diminer'. By being aware of these common pitfalls—specifically the use of 'de' for quantities, the nuances between synonyms, and the strict use of 'avoir' in compound tenses—learners can significantly improve their accuracy and sound much more natural when discussing reductions and decreases in French.

Preposition Error
Using 'par' instead of 'de' for percentages or amounts.
Auxiliary Error
Using 'être' instead of 'avoir' in the passé composé.
Synonym Confusion
Using 'diminuer' for physical lowering instead of 'baisser'.

Incorrect: Le prix a diminué par 20%. Correct: Le prix a diminué de 20%.

Incorrect: La douleur est diminuée. Correct: La douleur a diminué.

Incorrect: Diminue ta tête. Correct: Baisse ta tête. (Use baisser for physical movement).

Il faut faire attention à bien prononcer toutes les syllabes de diminuer.

N'oubliez pas que diminuer prend toujours l'auxiliaire avoir.

Expanding your vocabulary around the concept of decreasing requires familiarizing yourself with the synonyms of 'diminuer'. While 'diminuer' is the most general and widely applicable term, French offers several other verbs that convey similar meanings but carry distinct nuances. The most common of these is 'baisser'. 'Baisser' is often used interchangeably with 'diminuer' when talking about prices, temperatures, or levels (e.g., 'baisser les prix' or 'les prix baissent'). However, 'baisser' has a stronger physical connotation of moving downwards. You 'baisse' your head, your eyes, or a window. Another very common synonym is 'réduire'. 'Réduire' implies a more deliberate, active process of making something smaller in size, quantity, or extent. You 'réduire' a sauce by boiling it, you 'réduire' a fraction in mathematics, or you 'réduire' someone to silence. It often translates well to 'to reduce'. 'Atténuer' is a more advanced synonym that means to mitigate, to soften, or to make less severe. You would use 'atténuer' when talking about pain, a shock, or an effect (e.g., 'atténuer la douleur'). It is less about numerical decrease and more about lessening intensity. 'Amoindrir' is similar to 'atténuer' but often implies a loss of strength, value, or importance over time. For example, a scandal might 'amoindrir' a politician's reputation. 'Minimiser' means to minimize, often in the sense of downplaying the importance or severity of something, rather than physically making it smaller. Finally, 'décroître' is the direct antonym of 'croître' (to grow) and is used primarily in formal, scientific, or mathematical contexts to describe a natural or progressive decrease, such as the waning of the moon or the decline of a population. Understanding these subtle differences allows learners to choose the most precise word for their intended meaning, elevating their French from functional to fluent. While 'diminuer' will rarely be incorrect in a general sense, using 'atténuer' for pain or 'baisser' for a physical object demonstrates a higher level of linguistic mastery and cultural awareness.

Baisser
To lower, often used for physical downward movement or prices.
Réduire
To reduce, implying an active, intentional cutting down.
Atténuer
To mitigate or soften, used for pain, effects, or severity.

Au lieu de diminuer, on peut dire baisser les prix.

Le chef a décidé de réduire la sauce, ce qui revient à la diminuer.

Ce médicament va atténuer la douleur, il va la diminuer.

La population commence à décroître, c'est-à-dire à diminuer.

Il ne faut pas minimiser le problème, ni diminuer son importance.

How Formal Is It?

Difficulty Rating

Grammar to Know

Passé composé with 'avoir'

Use of preposition 'de' for quantities

Transitive vs. Intransitive verbs

Adverb placement with regular verbs

Subjunctive mood after expressions of necessity

Examples by Level

1

Le prix diminue.

The price decreases.

Present tense, 3rd person singular.

2

Je diminue le son.

I turn down the sound.

Present tense, 1st person singular.

3

Tu diminues la lumière.

You turn down the light.

Present tense, 2nd person singular.

4

La taille diminue.

The size decreases.

Intransitive use with a simple noun.

5

Il diminue la vitesse.

He decreases the speed.

Transitive use.

6

Nous diminuons le chauffage.

We turn down the heating.

Present tense, 1st person plural.

7

Le nombre diminue.

The number decreases.

Basic subject-verb sentence.

8

Elles diminuent le bruit.

They reduce the noise.

Present tense, 3rd person plural.

1

J'ai diminué ma consommation de viande.

I decreased my meat consumption.

Passé composé with avoir.

2

La pluie va diminuer ce soir.

The rain is going to decrease tonight.

Futur proche.

3

Diminuez le volume de la télévision.

Turn down the volume of the television.

Imperative form, formal/plural.

4

Le vent a beaucoup diminué.

The wind has decreased a lot.

Adverb placement in passé composé.

5

Nous voulons diminuer nos dépenses.

We want to decrease our expenses.

Infinitive after a conjugated modal verb.

6

La fièvre diminue lentement.

The fever is decreasing slowly.

Use with an adverb of manner.

7

Il faut diminuer le stress.

It is necessary to reduce stress.

Il faut + infinitive.

8

Elle a diminué la quantité de sucre.

She decreased the amount of sugar.

Transitive use in the past.

1

Le taux de chômage a diminué de deux pour cent.

The unemployment rate decreased by two percent.

Use of preposition 'de' for percentage.

2

Si nous prenons le vélo, nous diminuerons la pollution.

If we take the bike, we will decrease pollution.

Si clause with futur simple.

3

La douleur diminuait quand je prenais les médicaments.

The pain was decreasing when I took the medication.

Imparfait for ongoing past action.

4

L'entreprise a décidé de diminuer ses effectifs.

The company decided to reduce its workforce.

Formal business context.

5

Il est important de diminuer notre impact écologique.

It is important to decrease our ecological impact.

Impersonal expression + de + infinitive.

6

Les réserves d'eau diminuent dangereusement en été.

Water reserves decrease dangerously in summer.

Intransitive use with a strong adverb.

7

Pour maigrir, il a diminué les portions de ses repas.

To lose weight, he decreased his meal portions.

Infinitive of purpose (Pour + infinitive).

8

Leur influence dans la région a considérablement diminué.

Their influence in the region has considerably decreased.

Abstract noun as subject.

1

Il est impératif que nous diminuions les émissions de gaz à effet de serre.

It is imperative that we reduce greenhouse gas emissions.

Subjunctive mood after 'il est impératif que'.

2

Bien que le prix ait diminué, le produit reste trop cher.

Although the price has decreased, the product remains too expensive.

Past subjunctive after 'bien que'.

3

En diminuant les impôts, le gouvernement espère relancer l'économie.

By decreasing taxes, the government hopes to boost the economy.

Gérondif (en + present participle) to express method.

4

Le budget alloué à la recherche a été drastiquement diminué.

The budget allocated to research has been drastically reduced.

Passive voice in the passé composé.

5

Ses capacités cognitives diminueraient avec l'âge.

His cognitive abilities are said to decrease with age.

Conditionnel used for unconfirmed information or rumor.

6

L'objectif est de diminuer de moitié le gaspillage alimentaire d'ici 2030.

The goal is to halve food waste by 2030.

Expression 'diminuer de moitié'.

7

La tension entre les deux pays n'a cessé de diminuer depuis l'accord.

The tension between the two countries has not stopped decreasing since the agreement.

Ne cesser de + infinitive.

8

Il faudrait que la pression fiscale diminue pour encourager l'investissement.

The tax burden would need to decrease to encourage investment.

Conditionnel + subjunctive.

1

La rentabilité de l'investissement est allée en diminuant au fil des années.

The profitability of the investment went on decreasing over the years.

Aller en + participe présent to show progressive action.

2

L'engouement pour cette technologie a sensiblement diminué suite aux récents scandales.

The enthusiasm for this technology has noticeably decreased following the recent scandals.

Advanced vocabulary (engouement, sensiblement).

3

On observe que la biodiversité diminue à un rythme alarmant.

It is observed that biodiversity is decreasing at an alarming rate.

Formal observation structure.

4

Toute mesure visant à diminuer les libertés individuelles sera contestée.

Any measure aiming to decrease individual liberties will be contested.

Participe présent used as an adjective (visant).

5

Leur part de marché ayant diminué, ils ont dû revoir leur stratégie.

Their market share having decreased, they had to revise their strategy.

Participe passé composé for a causal clause.

6

Rien ne saurait diminuer le mérite de son accomplissement.

Nothing could diminish the merit of his achievement.

Savoir in the conditional used for 'can/could' in formal register.

7

La probabilité d'une récession a diminué, sans pour autant disparaître.

The probability of a recession has decreased, without however disappearing.

Sans pour autant + infinitive.

8

Il s'est efforcé de diminuer l'impact négatif de ses déclarations.

He strove to mitigate the negative impact of his statements.

S'efforcer de + infinitive.

1

L'acuité de son jugement semblait n'avoir en rien diminué malgré son grand âge.

The sharpness of his judgment seemed to have in no way diminished despite his great age.

Complex negative structure (n'avoir en rien).

2

Loin de s'estomper, la polémique n'a fait que croître, là où l'on espérait la voir diminuer.

Far from fading, the controversy only grew, where one hoped to see it diminish.

Contrastive structure (Loin de... là où).

3

La voilure des subventions étatiques a été drastiquement diminuée au grand dam des associations.

The scope of state subsidies was drastically reduced to the great displeasure of the associations.

Highly idiomatic and formal vocabulary (voilure, au grand dam).

4

Il eût fallu que la pression démographique diminuât pour éviter la crise.

The demographic pressure would have had to decrease to avoid the crisis.

Conditionnel passé II and imparfait du subjonctif (literary).

5

Cette concession, si infime soit-elle, ne diminue en rien la portée de l'accord.

This concession, however tiny it may be, in no way diminishes the scope of the agreement.

Concessive clause (si infime soit-elle).

6

L'ardeur des troupes allait diminuant à mesure que l'hiver s'installait.

The troops' fervor kept diminishing as winter set in.

Literary progressive form (aller + participe présent).

7

On ne saurait diminuer l'importance de cette découverte fortuite.

One cannot overstate (diminish) the importance of this serendipitous discovery.

Formal use of 'savoir' for ability.

8

Son prestige en fut d'autant diminué qu'il refusa de s'expliquer.

His prestige was diminished all the more because he refused to explain himself.

Structure 'en fut d'autant... que'.

Synonyms

réduire baisser décroître chuter amoindrir

Antonyms

Common Collocations

diminuer les prix
diminuer le risque
diminuer le stress
diminuer de moitié
diminuer le volume
diminuer les coûts
diminuer la vitesse
diminuer la douleur
diminuer les impôts
diminuer l'impact

Often Confused With

diminuer vs baisser

diminuer vs réduire

diminuer vs déduire

Easily Confused

diminuer vs

diminuer vs

diminuer vs

diminuer vs

diminuer vs

Sentence Patterns

How to Use It

general

A highly versatile verb suitable for almost any context involving reduction.

specific

In mathematics, it is used to denote subtraction or a negative trend in a function.

Common Mistakes
  • Using 'par' instead of 'de' for percentages (e.g., 'diminué par 10%').
  • Using 'être' as the auxiliary verb in the passé composé (e.g., 'est diminué').
  • Confusing it with 'baisser' for physical actions like lowering one's head.
  • Mispronouncing the 'u' as an English 'oo' sound.
  • Forgetting that it can be used intransitively without an object.

Tips

Always use 'avoir'

Remember that 'diminuer' takes 'avoir' in compound tenses. This applies even when it is intransitive. Say 'La douleur a diminué', not 'La douleur est diminuée'. This is a strict rule in modern French.

Pair with 'augmenter'

Learn 'diminuer' and 'augmenter' together. They are perfect antonyms. Whenever you practice one, try to make a sentence with the other. This creates strong mental links in your vocabulary.

Use 'de' for amounts

When stating how much something decreased, use 'de'. For example, 'diminuer de 20%'. Never use 'par' in this context. This is a very common anglicism to avoid.

Mind the French 'U'

The 'u' in 'diminuer' must be pronounced as a tight French /y/. Purse your lips as if to say 'oo' but say 'ee'. Practicing this sound will make you sound much more native.

Transitive vs Intransitive

Don't be afraid to use it both ways. You can 'diminuer le volume' (transitive) or 'le volume diminue' (intransitive). Both are perfectly correct and common. This makes the verb very flexible.

Baisser vs Diminuer

Use 'baisser' for physical downward movement (like a window). Use 'diminuer' for volume, quantity, or intensity. While they overlap, this general rule helps avoid awkward phrasing.

Diminuer de moitié

Memorize the phrase 'diminuer de moitié'. It means 'to decrease by half'. It is a very common and natural-sounding chunk of language. Use it in business or daily life contexts.

Use the noun form

In formal writing, use 'la diminution' instead of the verb to sound more professional. For example, 'La diminution des coûts est nécessaire'. Nominalization is a key skill for B2/C1 levels.

News reports

Listen to French economic news to hear 'diminuer' frequently. It is the standard verb for reporting drops in unemployment, inflation, or prices. It will help you practice numbers too.

Medical context

Doctors often use 'diminuer' when giving advice. They might tell you to 'diminuer le sel' or 'diminuer le sucre'. It's a polite but firm way to suggest a lifestyle change.

Memorize It

Mnemonic

Think of the English word 'diminish'. DIMINUer sounds like DIMINish and means the same thing.

Word Origin

From Latin 'diminuere', meaning to break into small pieces or to lessen.

Cultural Context

Often heard in news reports regarding 'le pouvoir d'achat' (purchasing power) and whether it is increasing or decreasing.

Used similarly to France, though in casual speech, 'baisser' might be slightly more prevalent for physical objects.

Practice in Real Life

Real-World Contexts

Conversation Starters

"Comment pouvons-nous diminuer notre stress au quotidien ?"

"Pensez-vous que le gouvernement devrait diminuer les impôts ?"

"Quelles sont les meilleures méthodes pour diminuer la pollution en ville ?"

"Avez-vous essayé de diminuer votre consommation de viande ?"

"Pourquoi le nombre d'étudiants a-t-il diminué cette année ?"

Journal Prompts

Écrivez sur une habitude que vous aimeriez diminuer et pourquoi.

Décrivez une situation où vous avez dû diminuer vos dépenses.

Analysez comment la technologie a diminué ou augmenté notre temps libre.

Racontez une fois où votre motivation a diminué et comment vous l'avez retrouvée.

Imaginez un monde où la pollution a drastiquement diminué. À quoi ressemble-t-il ?

Frequently Asked Questions

10 questions

It can be both. When transitive, it means to actively reduce something (e.g., 'diminuer le prix'). When intransitive, it means something is naturally decreasing (e.g., 'le prix diminue'). This flexibility makes it very useful. You don't need to change the verb form. Just add or remove the direct object.

It always uses 'avoir' in modern standard French. This is true whether it is used transitively or intransitively. For example, you say 'j'ai diminué le son' and 'le son a diminué'. Do not use 'être' even though it describes a change of state. This is a common mistake for learners.

'Baisser' often implies a physical downward movement, like lowering your head or a window. 'Diminuer' is more about reducing quantity, volume, or intensity. However, for things like prices or temperature, they are often used interchangeably. 'Baisser les prix' and 'diminuer les prix' both mean to lower prices. When in doubt for abstract concepts, 'diminuer' is usually safer.

You must use the preposition 'de'. The correct phrase is 'diminué de 10%'. Do not use 'par', which is a direct translation from English and is incorrect in French. This rule applies to any specific quantity or fraction. For example, 'diminué de moitié' means decreased by half.

Yes, but 'réduire' is more common in culinary contexts. If a recipe tells you to let a sauce simmer until there is less liquid, it will usually say 'faire réduire la sauce'. However, you can say 'diminuer le feu' to mean 'turn down the heat'. Both verbs are understood, but 'réduire' sounds more professional for the food itself.

The noun form is 'la diminution'. It translates to 'the decrease' or 'the reduction'. It is a feminine noun. You use it in phrases like 'une diminution des impôts' (a decrease in taxes). It is very common in formal writing and news reports.

Yes, it is a completely regular verb of the first group, ending in -er. It follows the exact same conjugation pattern as 'parler' or 'aimer'. This makes it very easy to conjugate in all tenses. The stem is 'diminu-'. Just add the standard endings.

Yes, but usually in a figurative or medical sense. If you say someone is 'diminué', it means they are weakened, often by age or illness. It translates to 'diminished' or 'weakened' in English. You would not use it to say someone got physically shorter. For height, you would use other expressions.

The most direct and common opposite is 'augmenter', which means to increase. They are often taught together as a pair. If prices go up, they 'augmentent'; if they go down, they 'diminuent'. Another opposite is 'accroître', which is slightly more formal. Knowing these pairs helps build vocabulary faster.

It is pronounced /di.mi.nɥe/. There are three syllables: di-mi-nuer. The final 'er' sounds like 'é'. Make sure to pronounce the 'u' as the French /y/ sound, not an English 'oo'. It should flow smoothly without harsh stops.

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