This is the 660th most frequent Greek word.
επιστρέψει
"Επιστρέψει" means "to return" or "will return."
Here, 'επιστρέψει' is used as a verb in the future tense to express scheduled return.
Ο Νίκος θα επιστρέψει από το ταξίδι του την Παρασκευή.
Nikos will return from his trip on Friday.
In this sentence, 'επιστροφή' (noun form) implies the act of returning, deriving from the verb 'επιστρέψει'.
Η επιστροφή της Άννας στο πάρτι έκανε όλους να χαρούν.
Anna's return to the party made everyone happy.
The verb 'επιστρέψει' as a subjunctive mood in future possibility to depict an action conditioned on a prior event.