1. A fact that is widely known, ordinary, or not disputed; something that is generally accepted or recognized as true
It is a common fact that water boils at 100 degrees Celsius.
É um fato comum que a água ferve a 100 graus Celsius.
2. In legal contexts, a fact that is not contested or disputed by the parties involved in a case
The common fact that the defendant was present at the scene was not disputed.
O fato comum de que o réu estava presente no local não foi contestado.
3. An established or well-known occurrence or situation
It is a common fact in urban areas that traffic increases during rush hours.
É um fato comum em áreas urbanas que o tráfego aumenta durante as horas de pico.