zanjón
gully
zanja
ditch, trench
+
-ón
augmentative suffix
Zanjón means gully and can be thought of as a large zanja0 (ditch or trench0), with -ón1 indicating a larger version1.
noun
- gullyA large ditch or gullyEl camino estaba bloqueado por un profundo zanjón. // The path was blocked by a deep gully.