This is the 12487th most frequent German word.
wow
An exclamation expressing astonishment or admiration.
Here, 'wow' is used as an interjection to express admiration.
Wow, das ist wirklich beeindruckend!
Wow, that is really impressive!
In this sentence, 'wow' conveys surprise and amazement.
Wow, ich hätte nie gedacht, dass das möglich ist.
Wow, I never thought that was possible.
'Wow' in this instance communicates a reaction to the extent or difficulty of the journey.