This is the 9097th most frequent Catalan word.
fosa
"Fosa" in Catalan means "pit" or "grave."
Here, 'fosa' refers to a grave or a burial site, specifically one used for multiple individuals.
La fosa comuna era el lloc on enterraven diverses persones juntes.
The mass grave was the place where several people were buried together.
In this context, 'fosa' means the process of melting or liquefying a material.
La fosa de l'acer requereix temperatures molt altes.
The melting of steel requires very high temperatures.
Here, 'fosa' metaphorically represents a crowd or a mass of people together.