This is the 10892nd most frequent Portuguese word.
inferir
To deduce or conclude from evidence and reasoning.
The word 'inferir' here is used to describe reasoning or deriving a conclusion based on evidence, in this case, the tone of voice.
Eu posso inferir do tom de voz dele que está chateado.
I can infer from his tone of voice that he is upset.
In this sentence, 'inferir' is used to mean deducing or inferring information logically from the evidence.
Após avaliar as evidências, o detetive conseguiu inferir a identidade do suspeito.
After evaluating the evidence, the detective was able to infer the suspect's identity.
Here, 'inferir' is applied to indicate drawing conclusions or inferring based on data or scientific results.