When someone starts preparing for the DELE, they often focus a lot on grammar, structures, or how to organize their ideas better. And yes, all of that matters. But there is another aspect that makes a huge difference between a correct text and a really good one: lexical precision.

Put simply, it is not only about speaking or writing without mistakes. It is also about choosing the most suitable word in each context.

Because saying something correctly is one thing. Saying it with nuance, accuracy, and naturalness is something else.

Very often, the problem is not a lack of vocabulary, but the habit of relying on the same general words all the time. Words such as bueno, bien, hacer, decir, problema, or lugar appear again and again in written tasks and oral presentations. As a result, the message sounds flatter, less precise, and less rich than it could be.

The good news is that this can be improved.

Why this matters so much in the DELE

In the DELE, it is not enough for the examiner to understand you. It also matters that you can express yourself with variety and precision.

This does not mean that you need to fill your text with strange or overly sophisticated vocabulary. In fact, that usually works against you. What really matters is using vocabulary that fits the context and avoiding the habit of repeating the same general-purpose words for everything.

For example, it is not the same to say that a measure was buena as to say that it was beneficiosa, favorable, or positiva. It is not exactly the same to say that someone dijo something as to say that they anunció it, expresó it, or manifestó it. And it is not the same to talk about a problema as to talk about an obstáculo, a dificultad, a complicación, or a dilema.

When you choose a better word, your message becomes clearer. And at the same time, your Spanish sounds more natural.

Leave bueno behind as your all-purpose word

Bueno is a useful word, of course. The problem is using it for absolutely everything.

Instead of writing or saying bueno all the time, it helps to stop and ask yourself what you really mean. Because sometimes you do not mean bueno. Sometimes you mean positivo. Or favorable. Or beneficioso. Or excelente.

If you are talking about results, consequences, or effects, words such as favorable, beneficioso, or positivo may work much better.

For example:

El teletrabajo tuvo efectos favorables en la conciliación familiar.
La medida resultó beneficiosa para los pequeños comercios.
La campaña tuvo un impacto positivo en la participación juvenil.

If you want to highlight the quality of something, then excelente or óptimo might be more suitable.

For example:

El servicio ofrecido por el centro fue excelente.
Se tomaron decisiones óptimas en un momento complicado.

And if you are describing a person, bueno may not be the most precise option either. In that case, you might need amable, bondadoso, generoso, or comprensivo, depending on what you want to say.

The main idea here is this: stop thinking of synonyms as a closed list and start thinking in terms of nuance.

Bien is not enough for everything

Another very common general word is bien.

It works, yes. But in many contexts, it is too vague.

Instead of saying that something salió bien, you could say that it happened correctamente, adecuadamente, or satisfactoriamente. If you want a slightly more formal or technical tone, you could also use expressions such as de forma óptima.

For example:

El plan se implementó correctamente en los centros piloto.
La propuesta fue recibida satisfactoriamente por una parte de la población.
Los recursos no se distribuyeron adecuadamente entre las distintas zonas.

Here again, context matters. Bien is perfectly useful in everyday conversation. But in a formal written task or an oral presentation, it is often worth being a bit more precise.

Not everything is hacer

Hacer is another word that appears in almost every text. Hacer un estudio, hacer un informe, hacer un cambio, hacer una evaluación, hacer un proyecto, hacer una campaña.

It is not wrong, but if you keep using it again and again, your Spanish loses richness.

In many cases, you can replace it with realizar, efectuar, or llevar a cabo, especially when you are talking about planned actions or institutional actions.

For example:

La administración llevó a cabo una evaluación independiente.
Se realizaron varias encuestas antes de aplicar la medida.
El centro efectuó una revisión de sus protocolos.

If you are referring to producing something more detailed, you could also use elaborar or confeccionar.

For example:

El comité elaboró un informe detallado sobre la situación.
La asociación confeccionó materiales informativos para las familias.

And if you mean generating something new, crear or producir may be better choices.

For example:

La iniciativa creó nuevas oportunidades de empleo.
La campaña produjo un cambio de actitud en parte del alumnado.

So the goal is not to eliminate hacer from your Spanish. The goal is to stop depending on it for everything.

Better options than decir

Decir is also repeated constantly. And just as in the previous cases, the issue is not using it once in a while, but using it all the time.

In more formal contexts, expresar, manifestar, and afirmar can work very well.

For example:

La portavoz expresó su preocupación por la falta de recursos.
Varios vecinos manifestaron su descontento con la nueva normativa.
El informe afirma que la medida no fue suficiente.

If the important idea is communicating new information, anunciar is much more precise.

For example:

El alcalde anunció un plan de transporte nocturno.

And if you are telling a story or recounting an experience, then contar, relatar, or narrar may fit better.

For example:

La entrevistada contó cómo cambió su vida tras mudarse al extranjero.
El autor relata su experiencia en un entorno rural.

Each of these verbs adds a slightly different meaning. And that is exactly where more advanced vocabulary starts to make a difference.

Problema is not always the best choice

Problema is useful, yes, but sometimes it is too general.

In many DELE texts, you can be much more precise if you replace problema with words such as dificultad, contratiempo, complicación, obstáculo, or dilema.

For example:

La principal dificultad fue adaptarse al ritmo del máster.
El proyecto sufrió varios contratiempos durante su fase inicial.
La falta de personal cualificado se convirtió en un obstáculo importante.
Nos encontramos ante un dilema difícil de resolver.

Notice that these words are not interchangeable in every situation. A dilema is not the same as a dificultad. An obstáculo is not the same as a contratiempo. That is why it is much better to learn synonyms through context, not as isolated words.

Stop using lugar for everything

Lugar is another word that appears all the time, especially in descriptive or argumentative tasks.

Sometimes you can replace it simply with sitio, zona, or área, if the context is more general.

For example:

Es una zona con pocas opciones de transporte público.
Se trata de un área especialmente afectada por el turismo masivo.

If you want a more technical or more formal tone, words such as ubicación, localización, or emplazamiento may work better.

For example:

El nuevo emplazamiento reduce el tráfico en el centro.
La ubicación del edificio facilita el acceso a los servicios básicos.

And if you are talking about an enclosed or official space, recinto can be very useful.

For example:

El evento se celebrará en un recinto ferial de gran capacidad.

As you can see, the point is not simply to swap one word for another. The point is to choose the word that best matches what you really want to say.

How to improve your vocabulary in a real way

There is something important here. Improving your vocabulary does not mean memorizing endless lists of difficult words. It means learning to notice when you are using a general word and asking yourself whether there is a more precise option.

A good place to start is by reviewing your own texts. Look at how many times you write bueno, bien, hacer, decir, problema, or lugar. Very often, the first step is not learning more vocabulary. It is noticing how much you repeat the same words.

After that, try replacing only some of them, not all of them. And always do it with meaning in mind.

It is also important to pay attention to combinations. It is not enough to learn beneficioso. You should also notice combinations such as beneficioso para. It is not enough to know adecuado. You should also notice whether it appears as adecuado para or adecuado a depending on the context.

That is what will help you sound more natural and make fewer mistakes.

One important warning

Sometimes students have the opposite problem: they try too hard to sound advanced.

And that is where you need to be careful.

You do not need to write in an artificial or overly elaborate way to show that you have a good level. In fact, that often makes the text worse. What really adds value is naturalness with precision.

In other words, choosing more accurate words without turning your writing into something stiff or unnatural.

It is much better to say:

La medida fue beneficiosa para ciertos sectores.

than to write something forced just to sound impressive.

What you should do from now on

From now on, every time you write or speak, try to identify your general-purpose words. You do not need to correct all of them at once. It is enough to start replacing some of them with more precise options.

Do it little by little. With context. And with naturalness.

Because the goal is not to sound strange. The goal is to express yourself better.

And in the DELE, that difference is very noticeable.

The main idea to remember

If you want to sound better in the DELE, do not focus only on avoiding mistakes. Pay attention to how you choose your words as well.

Bueno, bien, hacer, decir, problema, and lugar are useful words, but they cannot carry your whole message.

The more precise your vocabulary is, the clearer your message will be. And the clearer and more nuanced your message is, the better you will communicate your ideas.

Because it is not only about saying things. It is about saying them well, with intention, and with the right word.