The English word “diluting” is usually “diluyendo,” while “diluir” is the base verb in Spanish.
When you need the Spanish term for a label, recipe, lab note, or casual message, start with the verb diluir. It means to make something less concentrated by adding liquid, and it also works for softening the force of an idea, message, color, or flavor.
The exact Spanish form depends on the job “diluting” has in the English sentence. It can act like an action, a noun, or a description. Spanish does not use one form for all three jobs, so the safest choice changes with the sentence.
Diluting In Spanish With Natural Sentence Choices
Use diluyendo when the sentence means “in the process of diluting.” It is the present participle of diluir, so it pairs with estar for ongoing action. This is the form you want for “I am diluting the cleaner” or “She was diluting the paint.”
Use diluir when English “diluting” works like a noun after a verb such as “start,” “avoid,” “try,” or “finish.” English uses the -ing form there, but Spanish often uses the infinitive. That is why “avoid diluting the solution” becomes evita diluir la solución, not evita diluyendo.
When To Use Diluyendo
Diluyendo points to action happening during a stretch of time. It sounds natural with estar, seguir, and similar verbs. It is common in spoken Spanish, recipes, craft directions, and lab-style directions.
- Estoy diluyendo el jugo con agua. I am diluting the juice with water.
- Sigue diluyendo la pintura hasta que quede más clara. Keep diluting the paint until it is lighter.
- Estamos diluyendo el producto antes de aplicarlo. We are diluting the product before applying it.
This form also fits when you want to stress the act itself. If someone asks what you are doing at the sink, estoy diluyendo el detergente sounds direct and natural. It tells the listener that the action is happening right now, not that the product was already thinned.
When To Use Diluir
Diluir names the action itself. It is the plain verb form, so it fits after words that call for an infinitive. It also works in directions, labels, and formal text where English may use “to dilute” or “diluting.”
Try this test: if you can swap “diluting” with “to dilute” in English and the sentence still sounds close, Spanish will often use diluir. “Before diluting the concentrate” becomes antes de diluir el concentrado. “Avoid diluting it too much” becomes evita diluirlo demasiado.
How The Sentence Role Changes The Translation
English -ing words can be slippery because they do more than one job. Spanish is stricter here. If the word names an action, Spanish tends to use the infinitive. If it shows ongoing motion or activity, Spanish uses the participle. If it describes a substance after the process, Spanish uses an adjective.
That small grammar split saves you from stiff translation. Diluir antes de usar is clean on a product label. Está diluyendo el concentrado works when someone is doing the task. Concentrado diluido works when the product has already been mixed.
Spanish Words For Diluting A Liquid
The verb diluir is the clean, standard pick for liquid concentration. The RAE entry for diluir ties the verb to dissolving something with liquid and to lowering concentration by adding solvent. That matches the way people use it in science, cleaning, cooking, and art.
The Cambridge entry for dilute gives diluir as a Spanish translation, plus senses like weakening or softening. For day-to-day translation checks, the WordReference entry for dilute also lists common Spanish matches and forum usage.
Choose the word by setting. In a kitchen, rebajar may sound more casual when you add water to juice or broth. In a lab, diluir and dilución sound tighter. In art, aclarar may fit color, while diluir fits the act of adding thinner or water.
| English Use | Best Spanish Choice | Natural Sample |
|---|---|---|
| Ongoing action | diluyendo | Estoy diluyendo el tinte. |
| Action as a noun | diluir | Evita diluir la mezcla. |
| Past description | diluido / diluida | La pintura está diluida. |
| Process or result | dilución | La dilución cambió el sabor. |
| Ingredient added to thin | diluyente | Añade diluyente poco a poco. |
| Softening an idea | diluir / atenuar | No diluyas el mensaje. |
| Watering down flavor | rebajar / diluir | Rebaja el jugo con agua. |
| Making sauce thinner | aligerar / rebajar | Aligera la salsa con caldo. |
Diluido, Diluida, Diluidos, Diluidas
Use diluido when the English word is “diluted.” Spanish adjectives change to match the noun. A masculine singular noun takes diluido; a feminine singular noun takes diluida. Plural nouns take diluidos or diluidas.
Say jugo diluido, pintura diluida, productos diluidos, and soluciones diluidas. The accent-free form diluida is the normal spelling; do not write diluída in current Spanish spelling.
Agreement also matters with mixed nouns. If you describe two feminine items, use diluidas. If the group has at least one masculine noun, standard Spanish uses diluidos. This same pattern applies to other participles used as adjectives.
Dilución For The Noun
When you mean “the dilution,” use la dilución. It fits charts, lab notes, product labels, and recipe math. You can write una dilución 1:10 for a one-to-ten dilution, or la dilución final for the final diluted mixture.
For casual speech, people may choose mezcla if the exact concentration is not the point. In technical writing, dilución is cleaner because it names the concentration change, not just the mixing.
How To Say Diluting In Everyday Spanish
Spanish often sounds better when the sentence names the material and the added liquid. That small detail removes guesswork. “Dilute the cleaner” is fine in English, but diluye el limpiador con agua tells the reader what to add.
Use the command form for directions. Diluye works for one person in casual speech. Diluya works in formal speech or labels aimed at a customer. Diluyan works for a group in Latin America, while Spain may use diluid in casual plural speech.
| Situation | Spanish Sentence | Why It Works |
|---|---|---|
| Recipe | Diluye la miel con un poco de agua tibia. | Names the ingredient and liquid. |
| Cleaning label | Antes de usar, diluir en agua. | Short label style. |
| Paint | Estoy diluyendo la pintura. | Shows action in progress. |
| Lab note | Preparar una dilución 1:20. | Uses the noun for a ratio. |
Common Mistakes That Make It Sound Off
Do not translate every English -ing word as -ando or -iendo. That works for ongoing action, not for every noun-like use. Evita diluyendo sounds unfinished because Spanish expects the infinitive after evitar.
Do not use débil for every “diluted” product. Débil means weak, and it can sound odd for paint, juice, medicine, or cleaner. Use diluido when the substance was thinned by adding liquid.
Regional Wording
Rebajar is common when people talk about drinks, sauces, or paint. It can mean to thin, reduce, or tone down. Aclarar may appear with color because it means to make lighter. These words can work, but diluir stays the safest choice when concentration matters.
Some speakers also use aguar when a drink tastes watered down. That word can sound negative, as if the drink lost flavor. Use it only when that meaning is what you want: el hielo aguó el café, meaning the ice watered the coffee down.
Clean Translation Picks
If you only need one answer, use diluyendo for “is diluting” and diluir for the action name. Use diluido or diluida for “diluted,” and dilución for the noun. That set will handle labels, recipes, schoolwork, product directions, and most casual sentences.
A strong Spanish sentence also says what gets diluted and what gets added. Diluye el concentrado con agua beats a vague translation because it tells the reader the action, the material, and the liquid in one neat line.