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diagnostic

A2 noun #4,000 most common 9 min read

diagnostic

Top 4,000

Practice it Examples Notes & Tips diagnostic in 30 Seconds

Explanation diagnostic in your Level:

At the A1 level, the word 'diagnostic' might seem complex, but it is actually quite easy for English speakers because it looks almost exactly like the English word. At this stage, you should know that it is a masculine noun ('un diagnostic'). You will most likely use it when talking about a doctor. For example: 'Le docteur donne un diagnostic.' It is important to remember the final 'c' is pronounced like a 'k'. Even at this beginning stage, you can understand that it means finding out what is wrong with someone or something. You don't need to use it in complicated sentences, just recognize it in a medical context. It is a 'cognate', which means it shares the same root as the English word, making it a 'friend' for learners. Just remember: in French, it is the noun, not just an adjective.

At the A2 level, you begin to use 'diagnostic' in more varied contexts. You might encounter it when talking about your car or your computer. For example, if your car breaks down, the mechanic will 'faire un diagnostic'. You should also be aware of the verb 'diagnostiquer' (to diagnose). At this level, you can start to form sentences like 'Le mécanicien fait un diagnostic de ma voiture' or 'Le médecin a posé un diagnostic'. You are also introduced to the idea of a 'diagnostic' as a report, such as the energy report for an apartment (DPE). This is a very common part of daily life in France. You should be careful with the spelling; don't add a 'que' at the end of the noun. The focus at A2 is on practical, everyday usage in health and technology.

At the B1 level, you are expected to use 'diagnostic' with more precision and better collocations. You should use verbs like 'établir' or 'confirmer'. For example: 'Nous attendons les résultats pour confirmer le diagnostic.' You will also start to see the word in more abstract contexts, like business or school. A teacher might perform a 'diagnostic' of a student's level in French. You should also understand the difference between 'un diagnostic' (the noun) and 'diagnostique' (the adjective). For instance, 'un test diagnostique' (a diagnostic test) vs 'un diagnostic précis' (a precise diagnosis). At B1, your vocabulary expands to include adjectives that describe the diagnosis, like 'précoce' (early) or 'tardif' (late). You are now moving beyond simple doctor visits to more professional and analytical discussions.

At the B2 level, 'diagnostic' becomes a tool for analysis and argumentation. You will use it in professional settings to describe audits, market research, or social assessments. You should be comfortable with phrases like 'porter un diagnostic sur la situation' or 'un diagnostic de performance énergétique'. At this level, you understand the nuance that a 'diagnostic' is a structured conclusion based on evidence, distinct from a mere 'opinion' or 'constat'. You can discuss complex topics like 'le diagnostic prénatal' or 'le diagnostic différentiel' in medical ethics or science. Your grammar should be flawless when using the word, and you should be able to explain the steps leading to a diagnostic in a coherent presentation. You also recognize the word in political discourse when leaders analyze the 'state of the nation'.

At the C1 level, you use 'diagnostic' with stylistic flair and deep conceptual understanding. You can use it metaphorically to describe the failures of a system or the strengths of a philosophical argument. You might analyze a 'diagnostic sociologique' or a 'diagnostic territorial'. You are aware of the historical and etymological weight of the word, and you can distinguish it from related terms like 'diagnose' (used in botany or rare medical contexts) or 'auscultation'. You can write detailed reports where the 'diagnostic' section is the synthesis of complex data. Your ability to use the word in the passive voice or in complex relative clauses is expected. For example: 'Le diagnostic, bien que posé avec prudence, a suscité une vive polémique parmi les experts.' You use the word to show authority and analytical depth.

At the C2 level, 'diagnostic' is part of your mastery of the French language's analytical register. You can use it in academic writing, high-level business strategy, or literary criticism. You might discuss the 'diagnostic de l'époque' in a philosophical essay, echoing thinkers like Foucault or Bourdieu. You understand the most subtle connotations, such as the difference between a 'diagnostic' and a 'pronostic' in complex systems theory. Your usage is indistinguishable from a native speaker, including the ability to use it in wordplay or advanced rhetorical devices. You can navigate the most technical medical or legal documents where 'diagnostic' has specific legal implications (e.g., medical liability). The word is no longer just a term for a doctor's note; it is a fundamental concept in your ability to categorize and interpret the world in French.

Practice it Examples Notes & Tips

diagnostic in 30 Seconds

A masculine noun meaning 'diagnosis'.
Used in medical, technical, and social contexts.
Commonly paired with verbs like 'poser', 'établir', or 'faire'.
Spelled with a 'c' at the end, unlike the adjective 'diagnostique'.

The French word diagnostic is a masculine noun that primarily refers to the identification of the nature of an illness, a technical fault, or a social problem through examination and analysis. While it is a direct cognate to the English word 'diagnostic', there is a subtle but crucial linguistic distinction: in English, 'diagnosis' is the most common noun for the result of a medical exam, whereas 'diagnostic' is often used as an adjective (e.g., a diagnostic test). In French, le diagnostic is the standard noun for the diagnosis itself.

Domaine Médical: In a clinical setting, it is the conclusion reached by a doctor after evaluating symptoms and test results. It is the bridge between the patient's complaint and the treatment plan.

Après plusieurs examens, le médecin a enfin posé son diagnostic.

Beyond the hospital, the word is ubiquitous in French technical and bureaucratic life. For instance, when selling a house in France, one must provide a 'dossier de diagnostic technique' (DDT), which includes assessments of lead, asbestos, and energy efficiency. This is often referred to simply as 'le diagnostic'.

Usage Technique: Used by mechanics, IT specialists, and engineers to describe the process of finding the root cause of a malfunction.

In a metaphorical sense, politicians and sociologists perform a 'diagnostic de la société' to identify systemic issues like unemployment or inequality. This broad application makes it an essential word for intermediate learners who wish to engage in professional or civic discourse in French. The word implies a level of expertise and a systematic approach to observation. It is not a mere guess; it is a structured conclusion based on evidence.

Le garage a fait un diagnostic complet de ma voiture pour trouver la panne.

Contexte Immobilier: In France, the DPE (Diagnostic de Performance Énergétique) is a mandatory document for any property sale or rental, rating the building from A to G.

Le diagnostic énergétique montre que cet appartement est très économe.

Les experts ont rendu leur diagnostic sur l'état du pont après l'inondation.

Il est difficile d'établir un diagnostic psychologique sans plusieurs entretiens.

Using diagnostic correctly involves pairing it with the right verbs. In French, you don't just 'get' a diagnosis; you 'establish' it, 'pose' it, or 'confirm' it.

Poser un diagnostic: This is the most common medical collocation. It literally means 'to place a diagnosis'. Example: 'Le spécialiste a posé un diagnostic de diabète.'

Il a fallu trois semaines pour que les médecins puissent poser un diagnostic définitif.

Another vital verb is établir. This is used in more formal or technical contexts, such as an audit or a technical review. 'Établir un diagnostic' suggests a process of data collection and formal reporting.

Établir un diagnostic: Used for formal reports, audits, or complex medical cases. Example: 'L'expert a établi un diagnostic de la structure du bâtiment.'

Avant de commencer les travaux, nous devons établir un diagnostic précis de la situation.

In common parlance, you will also hear 'faire un diagnostic'. This is more neutral and can apply to a computer repair or a quick check-up.

Le technicien va faire un diagnostic de votre connexion internet.

When discussing the accuracy of a diagnosis, we use adjectives like 'précoce' (early), 'erroné' (erroneous/wrong), or 'différentiel' (differential).

Diagnostic précoce: Crucial in oncology and pediatrics. Example: 'Le diagnostic précoce du cancer augmente les chances de guérison.'

Un diagnostic précoce est essentiel pour traiter cette infection efficacement.

Malheureusement, le premier diagnostic était erroné et le patient a perdu du temps.

Finally, consider the phrase 'porter un diagnostic'. This is similar to 'poser' but often carries a slightly more philosophical or judgmental weight, such as when diagnosing the state of a nation's economy.

L'économiste a porté un diagnostic sévère sur la dette publique.

In France, diagnostic is a word you encounter in many high-stakes life situations. The most common is likely the medical consultation. Whether it's a routine visit to the 'médecin généraliste' or a specialized hospital stay, the word marks the transition from uncertainty to a plan of action. You will hear doctors say, 'Je ne peux pas encore me prononcer sur le diagnostic' (I cannot yet give a diagnosis).

À l'hôpital: Hear it during rounds or in the emergency room. 'On attend les résultats du labo pour confirmer le diagnostic.'

Le médecin m'a dit que le diagnostic serait prêt demain matin.

Another major area is the real estate market. In France, the law requires a 'Diagnostic de Performance Énergétique' (DPE) for every property. If you are looking to rent or buy an apartment in Paris, you will constantly see 'DPE' followed by a letter. Real estate agents will often say, 'Le diagnostic est excellent, c'est une classe A.' This usage has made the word a household term even for those who aren't in the medical field.

Immobilier: Mandatory reports on asbestos (amiante), lead (plomb), and electricity. 'Avez-vous consulté le dossier de diagnostic technique ?'

Sans le diagnostic plomb, vous ne pouvez pas signer l'acte de vente.

In the automotive world, modern cars are equipped with computers. When you take your car to a 'garage', the mechanic will often charge for a 'diagnostic valise' (plugging the car into a computer to find errors). This is a very common expense for French car owners.

Automobile: The electronic check-up. 'Le diagnostic a révélé un problème avec l'injection.'

Le mécanicien a branché la valise pour obtenir un diagnostic électronique.

Finally, in the news, you will hear journalists and pundits giving a 'diagnostic' of the political or economic climate. 'Le diagnostic du Premier ministre sur l'économie est optimiste.' This metaphorical use suggests that society is a patient being examined.

Le journal propose un diagnostic complet de la crise sociale actuelle.

Le diagnostic de l'expert a permis d'éviter une catastrophe industrielle.

The most frequent mistake for English speakers is confusion with the word 'diagnosis'. In English, you receive a 'diagnosis', but in French, you receive a diagnostic. There is no word 'diagnose' used in common French for this purpose.

Spelling Error: Diagnostic vs Diagnostique: The noun ends in 'c'. The adjective ends in 'que'. Never write 'un diagnostique' with a 'que' if you are referring to the result of the exam.

Correct: C'est un diagnostic difficile. Incorrect: C'est un diagnostique difficile.

Another common error is gender. Many learners assume that because many medical words ending in '-e' are feminine, 'diagnostic' might be too. It is strictly masculine: un diagnostic, le diagnostic.

N'oubliez pas le diagnostic médical pour votre dossier d'assurance.

Learners also struggle with the verb choice. In English, we say 'The doctor diagnosed me'. In French, you can say 'Le médecin m'a diagnostiqué une grippe' (The doctor diagnosed me with a flu), but it is often more natural to use the noun: 'Le médecin a posé un diagnostic de grippe'. Avoid saying 'Il a fait une diagnose', which sounds archaic or like you are trying to invent a word.

Confusion with Pronostic: A 'diagnostic' identifies the current state. A 'pronostic' predicts the future outcome. Don't confuse the two in a medical or business context.

Le diagnostic est une fracture, mais le pronostic de guérison est excellent.

L'ordinateur affiche un diagnostic d'erreur système.

Le diagnostic financier de l'entreprise est inquiétant cette année.

Finally, remember that 'diagnostic' is the noun, but the act of performing it is 'la réalisation d'un diagnostic'. You don't 'diagnostic' a car, you 'faites un diagnostic' of it.

While diagnostic is the most precise term for an expert's conclusion, French offers several alternatives depending on the context and the level of certainty.

Bilan vs Diagnostic: A 'bilan' is a general assessment or check-up (like 'bilan de santé'). A 'diagnostic' is more focused on identifying a specific problem or cause.

J'ai fait un bilan sanguin, et le diagnostic est une carence en fer.

Analyse vs Diagnostic: 'Analyse' refers to the process of breaking something down into parts. The 'diagnostic' is the conclusion derived from that analysis.

L'analyse des données a permis de poser un diagnostic marketing clair.

Constat vs Diagnostic: A 'constat' is a simple observation of facts (e.g., 'le constat d'accident'). A 'diagnostic' interprets those facts to find a cause.

Le constat est que la machine ne marche plus ; le diagnostic dira pourquoi.

In technical fields, you might also hear expertise. While a diagnostic is the result, the 'expertise' often refers to the entire process conducted by an 'expert'.

Nous avons demandé une expertise pour confirmer le premier diagnostic.

L'examen clinique est la première étape vers un diagnostic fiable.

Le diagnostic différentiel permet d'éliminer les autres maladies possibles.

Finally, for social issues, état des lieux (inventory of the situation) is often used as a synonym for a preliminary diagnostic.

How Formal Is It?

Fun Fact

The word entered the French language in the 16th century specifically as a medical term before broadening to technical and social fields.

Pronunciation Guide

UK /dja.ɡnɔs.tik/

US /dja.ɡnɔs.tik/

In French, stress is usually on the final syllable 'tic'.

Rhymes With

plastique boutique critique pratique statique atlantique magique unique

Common Errors

Pronouncing it like the English word with a silent 'c'.
Confusing the 'gn' sound with the 'gn' in 'oignon' (it is a hard 'g' followed by 'n' here).
Adding an extra 'e' sound at the end.

Difficulty Rating

Reading 2/5

Easy for English speakers due to cognate status.

Writing 3/5

The 'c' vs 'que' ending is a common trap.

Speaking 2/5

Pronunciation is straightforward once the final 'c' is mastered.

Listening 2/5

Distinctive sound, usually easy to pick out in context.

What to Learn Next

Prerequisites

médecin problème examen cause symptôme

Learn Next

pronostic traitement analyse expertise bilan

Advanced

herméneutique étiologie nosographie différentiel

Grammar to Know

The 'c' in 'diagnostic' is always pronounced [k] at the end of the word.

Un diagnostic [dja-gnos-tik]

Nouns ending in '-ic' are almost always masculine.

Le diagnostic, le trafic, le pic.

Distinguish between the noun (diagnostic) and the adjective (diagnostique).

Un diagnostic (noun) vs un outil diagnostique (adjective).

The verb 'diagnostiquer' follows regular -er verb conjugation.

Je diagnostique, tu diagnostiques...

Using 'de' after diagnostic to indicate the subject.

Le diagnostic de la grippe.

Examples by Level

Le docteur donne un diagnostic.

The doctor gives a diagnosis.

'Un' is the masculine article.

C'est un bon diagnostic.

It is a good diagnosis.

Adjective 'bon' precedes the noun.

Le diagnostic est simple.

The diagnosis is simple.

The verb 'être' links the subject to the adjective.

Où est le diagnostic ?

Where is the diagnosis?

Question word 'où' starts the sentence.

J'ai un diagnostic.

I have a diagnosis.

'J'ai' is the verb 'avoir' in the first person.

Le diagnostic est prêt.

The diagnosis is ready.

'Prêt' agrees with the masculine noun.

Un diagnostic rapide est important.

A quick diagnosis is important.

'Rapide' can be used for both genders but here it's masculine.

Il lit le diagnostic.

He reads the diagnosis.

'Il lit' is the third person singular of 'lire'.

Le mécanicien fait un diagnostic de la voiture.

The mechanic does a diagnosis of the car.

'Faire un diagnostic' is a common expression.

Le diagnostic de l'ordinateur est fini.

The computer diagnosis is finished.

Possessive 'de l'' is used for the computer.

Nous avons besoin d'un diagnostic technique.

We need a technical diagnosis.

'Besoin de' is followed by the indefinite article.

Le médecin a posé son diagnostic ce matin.

The doctor gave his diagnosis this morning.

'Poser un diagnostic' is the standard medical phrase.

Quel est le diagnostic pour ma tablette ?

What is the diagnosis for my tablet?

'Quel' is the masculine interrogative adjective.

Le diagnostic énergétique est obligatoire.

The energy diagnosis is mandatory.

'Énergétique' is an adjective describing the type of diagnostic.

Elle attend le diagnostic du spécialiste.

She is waiting for the specialist's diagnosis.

'Attendre' is a regular -re verb.

Le diagnostic ne révèle rien de grave.

The diagnosis reveals nothing serious.

'Rien de' is followed by a masculine adjective.

Il est difficile d'établir un diagnostic précis sans tests.

It is difficult to establish a precise diagnosis without tests.

'Établir' is more formal than 'faire'.

Le diagnostic précoce peut sauver des vies.

Early diagnosis can save lives.

'Précoce' means early in a professional context.

Le technicien a confirmé le diagnostic initial.

The technician confirmed the initial diagnosis.

'Initial' describes the first assessment.

Avez-vous reçu le diagnostic de performance énergétique ?

Have you received the energy performance diagnosis?

This refers to the French DPE report.

Le diagnostic de la situation économique est sombre.

The diagnosis of the economic situation is bleak.

Metaphorical use of 'diagnostic'.

Elle a contesté le diagnostic du premier médecin.

She challenged the first doctor's diagnosis.

'Contester' means to challenge or dispute.

Le diagnostic infirmier complète celui du médecin.

The nursing diagnosis completes the doctor's.

'Celui' is a demonstrative pronoun.

Un mauvais diagnostic peut entraîner des complications.

A wrong diagnosis can lead to complications.

'Mauvais' here means incorrect or poor.

Le diagnostic de l'expert a mis en évidence des fissures.

The expert's diagnosis highlighted some cracks.

'Mettre en évidence' means to highlight.

L'entreprise doit réaliser un diagnostic de ses risques.

The company must carry out a diagnosis of its risks.

'Réaliser' is a formal synonym for 'faire'.

Le diagnostic différentiel permet d'écarter d'autres pistes.

Differential diagnosis allows other paths to be ruled out.

'Écarter' means to rule out or push aside.

Le gouvernement a demandé un diagnostic social du pays.

The government requested a social diagnosis of the country.

Refers to a systematic study of social issues.

Ce diagnostic est basé sur des données statistiques rigoureuses.

This diagnosis is based on rigorous statistical data.

'Basé sur' indicates the foundation of the conclusion.

Le diagnostic prénatal soulève des questions éthiques.

Prenatal diagnosis raises ethical questions.

'Soulève' means to raise (a question).

Il faut porter un diagnostic lucide sur nos échecs.

We must provide a lucid diagnosis of our failures.

'Porter un diagnostic' is a high-level collocation.

Le diagnostic a été rendu public hier soir.

The diagnosis was made public last night.

Passive voice 'a été rendu'.

Le diagnostic territorial révèle des disparités flagrantes.

The territorial diagnosis reveals blatant disparities.

'Territorial' refers to urban or regional planning.

L'absence de diagnostic clair a plongé la famille dans l'angoisse.

The lack of a clear diagnosis plunged the family into anxiety.

'Plonger dans' is a metaphorical expression.

Le diagnostic de l'œuvre souligne son caractère visionnaire.

The diagnosis of the work highlights its visionary character.

Here 'diagnostic' means an analytical assessment.

Il a fallu affiner le diagnostic pour proposer un traitement ciblé.

It was necessary to refine the diagnosis to offer targeted treatment.

'Affiner' means to refine or sharpen.

Le diagnostic institutionnel pointe du doigt le manque de moyens.

The institutional diagnosis points the finger at the lack of resources.

'Pointe du doigt' is an idiom for 'identifies' or 'blames'.

Son diagnostic sur la modernité est teinté de pessimisme.

His diagnosis of modernity is tinged with pessimism.

'Teinté de' means tinged with or colored by.

Le diagnostic de panne a été facilité par l'intelligence artificielle.

The breakdown diagnosis was facilitated by artificial intelligence.

Refers to automated technical analysis.

Le diagnostic archéologique a précédé la construction du parking.

The archaeological diagnosis preceded the construction of the parking lot.

A mandatory survey in France before building.

Le diagnostic de la pathologie demeure sujet à caution.

The diagnosis of the pathology remains questionable.

'Sujet à caution' means doubtful or not fully reliable.

On ne saurait se satisfaire d'un diagnostic purement comptable.

One cannot be satisfied with a purely accounting-based diagnosis.

'On ne saurait' is a very formal literary negation.

Le diagnostic de l'expert judiciaire fera foi lors du procès.

The judicial expert's diagnosis will be authoritative during the trial.

'Faire foi' means to be accepted as official proof.

Établir un diagnostic de l'âme humaine est l'ambition de ce roman.

Establishing a diagnosis of the human soul is the ambition of this novel.

Highly metaphorical use of 'diagnostic'.

Le diagnostic de vulnérabilité face au changement climatique est alarmant.

The vulnerability diagnosis regarding climate change is alarming.

A technical term in environmental science.

Le diagnostic a été corroboré par une contre-expertise indépendante.

The diagnosis was corroborated by an independent second opinion.

'Corroboré' means supported or confirmed.

L'herméneutique du diagnostic médical exige une grande rigueur.

The hermeneutics of medical diagnosis require great rigor.

'Herméneutique' refers to the theory of interpretation.

Le diagnostic de la situation géopolitique actuelle est d'une complexité inouïe.

The diagnosis of the current geopolitical situation is of incredible complexity.

'Inouïe' means unheard of or incredible.

Synonyms

bilan analyse expertise constat évaluation identification examen verdict

Antonyms

ignorance incertitude confusion pronostic

Common Collocations

poser un diagnostic

établir un diagnostic

diagnostic de performance énergétique

diagnostic précoce

faire un diagnostic

diagnostic différentiel

diagnostic infirmier

diagnostic financier

diagnostic prénatal

porter un diagnostic

Common Phrases

Le diagnostic est tombé.

— The diagnosis has been delivered (often implying bad news).

Le diagnostic est tombé : il doit être opéré.

Attendre le diagnostic.

— To wait for the results of an examination.

Nous attendons le diagnostic du labo.

Un diagnostic sans appel.

— A diagnosis that is final and cannot be disputed.

Le diagnostic est sans appel, la machine est morte.

Dossier de diagnostic technique.

— The full set of mandatory technical reports for a house sale.

Le vendeur doit fournir le dossier de diagnostic technique.

Faire un diagnostic de situation.

— To assess the current state of affairs.

Commençons par faire un diagnostic de situation.

Erreur de diagnostic.

— A mistake in identifying the problem.

L'erreur de diagnostic a coûté cher au patient.

Outil de diagnostic.

— A tool or software used to find problems.

Cet outil de diagnostic est très performant.

Diagnostic de territoire.

— An analysis of a specific geographic area's needs.

Le diagnostic de territoire est la première étape.

Établir un diagnostic partagé.

— To reach a consensus on what the problem is.

Nous devons établir un diagnostic partagé avec l'équipe.

Le diagnostic se précise.

— The diagnosis is becoming clearer as more info arrives.

Avec ces tests, le diagnostic se précise.

Often Confused With

diagnostic vs diagnostique

This is the adjective form. Use it to describe a test or a method (e.g., un test diagnostique).

diagnostic vs diagnose

This is a rare noun, mostly used in botany for a brief description of a species.

diagnostic vs pronostic

This refers to the prediction of the future course of a disease or situation, not the identification of the current problem.

Idioms & Expressions

"Poser un diagnostic sur la société"

— To analyze and criticize the state of society.

Les intellectuels aiment poser un diagnostic sur la société.

formal

"Le diagnostic de l'instant"

— A quick assessment of a current situation.

Son diagnostic de l'instant était très juste.

neutral

"C'est un diagnostic de médecin de campagne"

— A simple, straightforward, and practical diagnosis.

Il a fait un diagnostic de médecin de campagne, efficace.

informal

"Vivre dans l'attente du diagnostic"

— To be in a state of suspense regarding a major decision or result.

Toute l'entreprise vit dans l'attente du diagnostic de l'audit.

neutral

"Un diagnostic à l'emporte-pièce"

— A hasty, blunt, or oversimplified diagnosis.

Ne faites pas un diagnostic à l'emporte-pièce sans réfléchir.

informal

"Le diagnostic de la dernière chance"

— A final attempt to identify a problem before giving up.

C'est le diagnostic de la dernière chance pour ce moteur.

neutral

"Avoir le sens du diagnostic"

— To be naturally good at identifying the root of problems.

Elle a vraiment le sens du diagnostic en informatique.

neutral

"Un diagnostic en demi-teinte"

— An unclear or mixed diagnosis.

Le diagnostic en demi-teinte ne nous aide pas beaucoup.

neutral

"Passer au diagnostic"

— To start the analysis phase.

Après l'observation, nous passons au diagnostic.

neutral

"Le diagnostic est réservé"

— When a professional is not yet ready to commit to a conclusion.

Pour l'instant, le diagnostic est réservé par les experts.

formal

Easily Confused

diagnostic vs diagnostique

Identical pronunciation in many contexts and similar spelling.

Diagnostic is the noun (the diagnosis); diagnostique is the adjective (diagnostic).

J'ai reçu le diagnostic (noun) après l'examen diagnostique (adjective).

diagnostic vs bilan

Both involve assessing a situation.

A bilan is a general check-up or balance sheet; a diagnostic is looking for a specific cause or problem.

Le bilan de santé a mené au diagnostic de l'anémie.

diagnostic vs analyse

Both are analytical processes.

Analyse is the process of breaking down; diagnostic is the resulting conclusion.

L'analyse d'urine a permis le diagnostic.

diagnostic vs expertise

Both imply a professional judgment.

Expertise is the whole process or the skill; diagnostic is the specific finding.

L'expertise a duré trois heures pour un diagnostic de cinq minutes.

diagnostic vs constat

Both involve looking at facts.

A constat is just stating what is seen; a diagnostic explains why it is that way.

Le constat est la fuite d'eau, le diagnostic est le tuyau cassé.

Sentence Patterns

Le diagnostic est [adjective].

Le diagnostic est bon.

Le [person] fait un diagnostic.

Le mécanicien fait un diagnostic.

Il est nécessaire d'établir un diagnostic de [noun].

Il est nécessaire d'établir un diagnostic de la situation.

Le diagnostic confirme que [clause].

Le diagnostic confirme que la batterie est morte.

Après avoir posé le diagnostic, le médecin [action].

Après avoir posé le diagnostic, le médecin a prescrit du repos.

Un diagnostic [adjective] permet de [verb].

Un diagnostic précoce permet de mieux soigner.

Le diagnostic porté sur [subject] souligne [noun].

Le diagnostic porté sur l'économie souligne une fragilité.

Bien que le diagnostic soit [adjective], il convient de [verb].

Bien que le diagnostic soit alarmant, il convient de rester calme.

Word Family

Nouns

diagnostiqueur (the person who performs a technical diagnostic)

diagnose (rare botanical/medical term)

Verbs

diagnostiquer (to diagnose)

Adjectives

diagnostique (diagnostic - e.g., un test diagnostique)

pronostic

analyse

bilan

symptôme

clinique

How to Use It

frequency

Very high in medical, technical, and real estate domains.

Common Mistakes

Une diagnostic → Un diagnostic
Diagnostic is a masculine noun. Always use masculine articles and adjectives with it.
Le diagnostique est grave. → Le diagnostic est grave.
The noun form ends in 'c'. 'Diagnostique' with 'que' is the adjective form.
Le médecin a fait une diagnose. → Le médecin a posé un diagnostic.
'Diagnose' is very rare and usually incorrect in a standard medical context. Use 'diagnostic'.
J'attends la diagnose. → J'attends le diagnostic.
English speakers often try to translate 'diagnosis' directly as 'diagnose', but in French, it is 'diagnostic'.
Un diagnostic diagnostique. → Un test diagnostique.
Don't use the noun as an adjective. Use the proper adjective form 'diagnostique'.

Tips

The Noun-Adjective Trap

Always remember: Noun = Diagnostic (ends in C). Adjective = Diagnostique (ends in QUE). Think: 'C' is for 'Conclusion' (the noun).

The Hard C

Make sure to click that 'k' sound at the end. It's not 'diag-nos-tee', it's 'diag-nos-teek'.

Pairing with Verbs

To sound native, use 'poser un diagnostic'. It sounds much more professional than just 'donner un diagnostic'.

DPE Knowledge

If you live in France, you will see 'DPE' everywhere. Knowing it stands for 'Diagnostic' will help you understand apartment ads.

Gender Check

It's 'UN' diagnostic. Even though it ends in a 'c', it follows the pattern of many masculine Greek-rooted words.

Diagnostic vs Bilan

Use 'bilan' for a general summary and 'diagnostic' when you are hunting for a specific problem.

Social Analysis

Use 'diagnostic' in essays to show you are performing a deep analysis of a social problem.

The 'Valise'

In a garage, a 'diagnostic valise' is the electronic check-up. It's a very common phrase.

Differential Diagnosis

In B2/C1 exams, using 'diagnostic différentiel' shows a high level of technical vocabulary.

The 'TIC' Sound

Think of a clock 'ticking' as the doctor thinks of a 'diagnostic'.

Memorize It

Mnemonic

Think of a 'DIAGram' that helps you see the 'NOSTIC' (knowledge). A diagnostic gives you the knowledge of the diagram.

Visual Association

Imagine a doctor holding a large magnifying glass over a patient, and the magnifying glass is shaped like the letter 'C' (for Diagnostic).

Word Web

médecin voiture DPE maladie expert analyse test résultat

Challenge

Try to use 'diagnostic' in three different ways today: once for your health, once for a gadget, and once for a social issue.

Word Origin

From the Ancient Greek 'diagnōstikos', which means 'able to distinguish'.

Original meaning: The ability to discern or distinguish between different conditions.

Indo-European (via Greek and Latin).

Cultural Context

Be sensitive when discussing medical diagnostics; it can be a stressful topic for many.

In English, we say 'diagnosis'. Using 'diagnostic' as a noun in English usually refers to a computer program. In French, it's the everyday word for 'diagnosis'.

Dr. House (French dubbed version uses 'diagnostic' constantly) Molière's plays often mock medical 'diagnostics' of the time. French real estate laws (Loi Carrez and DDT).

Practice in Real Life

Real-World Contexts

At the doctor's office

Quel est votre diagnostic ?
Quand aurons-nous le diagnostic ?
Est-ce un diagnostic définitif ?
Je voudrais un deuxième diagnostic.

Selling a house

Le diagnostic plomb est-il fait ?
Où est le DPE ?
Le diagnostic amiante est négatif.
Les diagnostics sont à la charge du vendeur.

Car repair

Faites un diagnostic complet.
Combien coûte le diagnostic ?
Le diagnostic valise a parlé.
C'est un diagnostic de panne électrique.

Business meeting

Le diagnostic de l'entreprise est clair.
Nous devons affiner le diagnostic.
Le diagnostic révèle un manque de productivité.
Basons-nous sur ce diagnostic.

IT Support

Lancez le diagnostic système.
Le diagnostic a échoué.
Quel est le diagnostic d'erreur ?
Le diagnostic réseau est en cours.

Conversation Starters

"Est-ce que tu as déjà eu un diagnostic médical surprenant ?"

"Pourquoi le diagnostic énergétique est-il si important en France ?"

"Penses-tu qu'une IA peut poser un meilleur diagnostic qu'un humain ?"

"Quel est ton diagnostic sur l'ambiance au travail en ce moment ?"

"Comment réagirais-tu si un mécanicien te donnait un mauvais diagnostic ?"

Journal Prompts

Décrivez une situation où un diagnostic a changé votre vie.

Faites le diagnostic de vos forces et de vos faiblesses en français.

Pourquoi la précision est-elle cruciale dans un diagnostic technique ?

Imaginez un monde sans diagnostics médicaux.

Analysez le diagnostic social de votre quartier.

Frequently Asked Questions

10 questions

It is masculine. You should always say 'un diagnostic' or 'le diagnostic'. This is a common point of confusion for learners who expect medical terms to be feminine.

In French, 'diagnostic' is the noun for 'diagnosis'. In English, 'diagnostic' is usually an adjective. So, 'My diagnosis' becomes 'Mon diagnostic'.

The plural is 'diagnostics'. You simply add an 's' at the end. The pronunciation remains the same.

Yes, it is very common. Mechanics 'font un diagnostic' using computers to find out what is wrong with the engine.

It stands for 'Diagnostic de Performance Énergétique'. It is a mandatory energy report for homes in France.

No, it is pronounced like a 'k'. It sounds like 'dee-ah-gnoh-steek'.

Use 'diagnostiquer' when you need a verb (e.g., 'Le médecin diagnostique la maladie'). Use 'diagnostic' when you need a noun (e.g., 'Le diagnostic est tombé').

It is a medical method where a doctor considers all possible diseases that could cause the symptoms before reaching a final conclusion.

Yes, you can give a 'diagnostic' of the economy, a political situation, or even a relationship.

Yes, but it is very rare. It is mostly used in botany or in very specific medical contexts. For 99% of situations, use 'diagnostic'.