This is the 12658th most frequent German word.
west
The cardinal direction opposite of east.
'Westen' indicates the direction 'westward' in this sentence, used as the direction of travel.
Er ist nach Westen gegangen, um eine neue Stadt zu erkunden.
He went west to explore a new city.
Here, 'Westen' is used as a noun to denote the geographical direction, west.
Der Sonnenuntergang im Westen ist besonders schön.
The sunset in the west is particularly beautiful.
In this examples, 'Westen' is used as a nominative noun describing the direction the windows are oriented towards.