Introduction
The verbs and prepositions Portuguese learners choose can change meaning subtly. Two common combinations are Avisar a and Avisar para. This article explains when to use each form, the grammar behind them, clear examples in Brazilian Portuguese, and tips to avoid common mistakes. Useful for beginners and intermediate students aiming for natural, idiomatic speech.
- What does avisar mean?
- Basic objects: direct and indirect
- When to use Avisar a
- When to use Avisar para
- Comparing the two: side-by-side examples
- Common mistakes and how to avoid them
- Nuances in tone and register
- Cultural and usage notes
- More example sentences with translations
- Quick decision guide
- Final tips for practice
- Conclusion
What does avisar mean?
Avisar is a versatile verb in Portuguese that generally means to inform, to warn, or to give notice. Depending on the construction and preposition used, the nuance shifts between simply passing information and warning someone about danger or future problems. Understanding how to pair it with prepositions helps you express precise intentions.
Basic objects: direct and indirect
Portuguese uses both direct objects and indirect objects. With Avisar, the person being informed usually appears as an indirect object. That means you often use a preposition before the person or a clitic pronoun attached to the verb. Learning this distinction is the foundation for using Avisar a and Avisar para correctly.
Indirect object with a
When you want to say you told or informed someone, use the preposition a before the person if you spell out the name or use a noun phrase. This marks the person as the indirect object and is the most common and grammatically typical construction.
Examples in Brazilian Portuguese:
Avisa a Maria sobre a reunião amanhã.
Avisa ao João que o filme mudou de horário.
Eu avisei à equipe sobre a nova política.
Clitic pronouns (me, te, lhe, nos, vos, lhes)
Instead of using a plus a noun, you can attach clitic pronouns to avisar. For spoken Brazilian Portuguese, use me, te, nos, lhes or the commonly used lhe for formal indirect objects. Note the contraction when combining com a preposition in some cases.
Examples:
Ela me avisou cedo.
Você nos avisou sobre o atraso.
Eu lhe avisei por e-mail.
When to use Avisar a
Avisar a marks the person who receives the information and is used when you want to say you informed or notified someone. It is appropriate for both neutral information and formal notifications, as well as warnings if framed in context.
Neutral notification
Use avisar a when the goal is to inform someone about facts, schedules, or logistical details. There is no implied danger; it is simply passing information.
Examples:
Avisa a recepção que chegamos cedo.
Vou avisar a Ana sobre o jantar de sexta.
O gerente avisou a equipe sobre a mudança de turno.
Formal notices and announcements
For official or formal contexts, avisar a is standard. You can pair it with nouns like administração, diretoria, polícia (in nonviolent, procedural contexts), and other institutions when giving notice.
Examples:
Por favor, avise a administração sobre o problema do elevador.
A empresa avisou a todos os funcionários sobre o treinamento.
Warnings framed as information
When you warn someone but grammatically treat them as the indirect object, you still use avisar a. The tone of warning comes from additional words or context, not from the preposition itself.
Examples:
Avisa o motorista que a estrada está perigosa à noite.
Avise os alunos de que a prova foi adiantada.
When to use Avisar para
Avisar para is less common and has a different nuance. It emphasizes purpose or direction, often meaning to tell someone to do something or to inform for a particular reason. It can also introduce the content or intended outcome, for example warning someone so they can take action.
Purpose or intention
Use avisar para when you want to stress why you inform someone or what you want them to do after being informed. This construction highlights the intention behind the notification.
Examples:
Avise para fecharem a porta quando saírem.
Ela avisou para trazerem os documentos amanhã.
Colloquial and regional usage
In some Brazilian regional varieties and informal speech, speakers use avisar para more freely, particularly when followed by an infinitive verb indicating the requested action. While accepted in spoken contexts, some prescriptive grammarians prefer avisar a plus a noun or clitic for the person.
Examples:
Me avisaram para chegar cedo, então fui às 8h.
Avisaram para não usar o elevador.
Warn in the sense of tell someone to beware
You can also use avisar para when the idea is to tell someone to be careful or take action to avoid harm. It often appears with negative imperatives or cautionary verbs in the following clause.
Examples:
Avisaram para não atravessar a rua sem olhar.
Avisaram para tomar cuidado com o degrau.
Comparing the two: side-by-side examples
Comparisons help clarify the nuance. Below are pairs of sentences showing how the meaning shifts between Avisar a and Avisar para.
Example 1 – Inform vs instruct:
Avisa a Maria sobre o atraso do voo.
Avisa para Maria chegar cedo amanhã para resolver o despacho.
In the first sentence, you inform Maria. In the second, you emphasize the reason and desired action for Maria to take.
Example 2 – Neutral statement vs intended action:
Eu avisei a equipe da mudança de horário.
Eu avisei para a equipe preparar os relatórios até sexta.
The first states that the team was informed. The second stresses the instruction or purpose tied to the notice.
Common mistakes and how to avoid them
Many learners overgeneralize and substitute one preposition for the other. Here are practical tips to avoid errors:
1. If the focus is who received the information, prefer avisar a or clitic pronouns. Example: Avisa a Paula / Ela me avisou.
2. If the focus is why or what action should be taken, consider avisar para followed by an infinitive or clause. Example: Avisaram para levar capacete.
3. In formal writing, favor avisar a for clarity and standard grammar.
4. Listen for regional differences: spoken Brazilian Portuguese may accept avisar para in contexts where European Portuguese would not.
Pronouns and contractions — quick reference
When using clitic pronouns, remember common combinations:
Me / te / nos come directly after the verb in speech: Ela me avisou.
Lhe can be used formally: Eu lhe avisei.
When combining with the preposition a and a definite article, contractions occur: a + o = ao; a + a = à (with grave accent indicating contraction in written Portuguese). Example: Avisa ao cliente. Eu avisei à diretora (formal written contraction).
Nuances in tone and register
Choice of preposition also signals register. Avisar a is neutral and appropriate for formal and written contexts. Avisar para is more colloquial and action-oriented, common in spoken Brazilian contexts and in phrases where the listener is instructed.
Examples across registers
Formal written: A empresa avisou a todos os acionistas sobre a assembleia.
Informal spoken: Me avisaram para não esquecer o ingresso.
Neutral spoken: Avise a mãe que chegaremos tarde.
Cultural and usage notes
In Brazil, communication often values clarity and directness. When giving instructions or warnings, speakers commonly add explicit verbs like pedir, recomendar, avisar to make expectations clear. Using avisar para with an infinitive is a natural pattern to express instructions and expectations in everyday speech.
Also note that Brazilian Portuguese tends to prefer subject-verb-object order and uses clitic pronouns frequently in spoken language, so you will hear many combinations like me avisou or nos avisaram that might feel compressed compared to English structures.
More example sentences with translations
Note: translations are for understanding but keep learning in Portuguese sentences.
Avisa o motorista que a saída mudou.
Avisa para o motorista reduzir a velocidade nas curvas.
Ele avisou a família sobre a viagem.
Ele avisou para a família não se preocupar com a mudança.
Avise a recepção quando chegar.
Avisaram para a recepção guardar as malas.
Quick decision guide
If you need a fast rule while speaking or writing, use this simple decision tree:
– Is your main focus the person who receives the information? Use avisar a or a clitic pronoun.
– Do you want to stress the purpose, the resulting action, or instruct someone to do something? Use avisar para followed by an infinitive or clause.
– In formal writing, default to avisar a for clarity.
Final tips for practice
Pay attention to Brazilian media, podcasts, and conversations. Notice when speakers use me avisaram, avisei a, or avisaram para. Mimicking natural speech helps internalize usage. When in doubt, think about whether you want to highlight the recipient (use avisar a) or the intended action or purpose (use avisar para).
Conclusion
Mastering the difference between Avisar a and Avisar para makes your Portuguese more precise and natural. Use avisar a to mark who received the information and prefer avisar para when emphasizing purpose or requested action. Listen to native speakers for regional patterns and choose the form that fits the tone and register you want. With practice, these distinctions will become automatic.

