conversion

n.

1. A converting or being converted

   change, transformation, metamorphosis, changeover, growth, passage, metabolism, turning point, alteration, exchange, translation, resolution, passing, transmigration, transfiguration, transmutation, resolving, progress, flux, transmogrification, reduction; see also change 1, 2, reformation 1.

   Antonyms establishing*, settlement*, fixation. *

2. A basic change in belief; especially, espousal of a religion

   turn, spiritual change, regeneration, rebirth, accepting the true faith, turning to the church, turning to God, turning to Christ, being born again, being baptized, accepting baptism, seeing the light, change of heart, change in character, new birth; see also reformation 2.

   Antonyms reversion, desertion*, fall from grace.