verb To undergo a deconversion from a religion, faith or belief or to induce (someone) to reject a particular religion, faith, or belief.
She has deconverted from Christianity, Islam, Judaism, etc.
verb To revert or to restore.
verb To change a building that has been converted to a new use back to its original use; specifically to change a house that has been converted into apartments or flats back to a single-family dwelling.