This is the 11636th most frequent Spanish word.
fosa
"Fosa" means "pit," "ditch," or "grave" in English.
Here, 'fosa' refers to a physical excavation or pit in the ground intended to contain or collect, emphasizing its literal meaning.
La fosa en el jardín está llena de agua.
The pit in the garden is filled with water.
In this usage, 'fosa' refers specifically to the term 'mass grave,' highlighting its associated horror and solemnity.
Descubrieron una fosa común en las cercanías.
They discovered a mass grave nearby.
Here, 'fosa' refers to an underwater trench, commonly encountered in geography and oceanography studies.