This is the 2397th most frequent German word.
oben
"Oben" means "above" or "upstairs" in English.
The word 'oben' is used to indicate the location of the airplane high in the sky, creating a spatial reference.
Ich sehe ein Flugzeug oben am Himmel.
I see an airplane up in the sky.
Here, 'oben' conveys the position of the book as being at a higher point on the shelf.
Das Buch steht oben auf dem Regal.
The book is on the top shelf.
In this sentence, 'oben' specifies the location of the tourists as being at the highest point of the mountain.