Which one should you use?
While sim is the standard choice, afirmativo is used to mean 'affirmative' in more formal or technical contexts, such as radio communications. sim is also the direct antonym of não (no).
Is there a formal and an informal way to say it?
In formal or technical situations, you might use afirmativo. For casual agreement, you may encounter the Brazilian slang beleza to mean 'cool' or 'alright' or the informal Brazilian contraction tá (from 'está') which functions like 'yeah' or 'yep'.
Is it said differently in some regions?
In Portugal, the phrase está bem is particularly common to express 'alright' or 'okay'. In Brazil, tá is a common casual way to say 'yeah' or 'yep' and beleza is widely used slang meaning 'cool' or 'alright'.
Related words
How does it change in a sentence?
When using sim as a noun to mean the answer 'yes', it is commonly used with the verb dizer (to say), as in the phrase dizer sim.
How do you pronounce it?
/ˈsĩ/
Did you know?
- In Portuguese, you can answer a negative question in the affirmative by using sim, whereas in English you might say 'yes' or 'no' depending on the context of the denial.
- The evolution of sim traces back to the Latin word sīc, which was used to express 'thus' or 'in this manner'.
- The Brazilian slang beleza, used as a casual 'yes', literally translates to 'beauty'.
Examples in context
- Isso é um sim?Is that a yes?This sentence is useful for asking if a statement constitutes a sim.Tatoeba #8539208 by Ricardo14, translation #7812408 by Hybrid
- O Tom disse sim.Tom said yes.This sentence shows how to use sim as the object of the verb disse.Tatoeba #6781009 by Ricardo14, translation #4394831 by CK
- Ele já disse sim.He has already said yes.This sentence demonstrates the use of sim to indicate that an agreement has already occurred.Tatoeba #384804 by brauliobezerra, translation #290307 by CK
- 403 more sentences on Tatoeba
Example conversation
Camila is asking Rodrigo if he is ready to leave.
- CamilaRodrigo, você está pronto?Rodrigo, are you ready?
- RodrigoSim, eu já peguei as chaves.Yes, I already grabbed the keys.
- CamilaVamos agora?Shall we go now?
- RodrigoSim, vamos.Yes, let's go.
Sources
- Wiktionary, “yes” translations and entries sim, CC BY-SA 4.0, dump of 2026-09-26.
- Word origins: Wiktionary entries sim, CC BY-SA 4.0.
- Example sentences: Tatoeba CC BY 2.0 FR.