This is the 8780th most frequent Spanish word.
sud
"Sud" is not commonly used in Spanish; it is a French word meaning "south." In Spanish, "sur" means "south."
Here, 'sud' is used as a noun referring to the cardinal direction south.
El sud es el punto cardinal opuesto al norte.
The south is the cardinal point opposite to the north.
In this example, 'sud' is used as a noun indicating the direction traveled.
Viajamos hacia el sud en nuestra última aventura.
We traveled south on our last adventure.
Here, 'sud' functions as a noun denoting the origin of the wind, being from the south direction.