ἐπιστροφή G1995
epistrophḗ · ep-is-trof-ay' · Noun Feminine
from ἐπιστρέφω; reversion, i.e. morally, revolution:--conversion.
1 Occurrence in the King James Bible
Acts 15:3And being brought on their way by the church, they passed through Phenice and Samaria, declaring the conversion of the Gentiles: and they caused great joy unto all the brethren.