This is the 3729th most frequent Catalan word.
adeu
"Goodbye."
In this sentence, 'adeu' is used as a farewell expression when parting ways.
Adeu, ens veurem demà!
Goodbye, we will see each other tomorrow!
Here, 'adeu' is used as a noun to represent the concept of farewell.
Va dir un adeu apressat abans de marxar.
He said a rushed goodbye before leaving.
In this usage, 'adeu' is figuratively saying farewell to an abstract concept, indicating moving on.