2. Verb. (intransitive) To undergo a deconversion from a religion, faith or belief or (qualifier transitive) to induce (someone) to reject a particular religion, faith, or belief. ¹
3. Verb. (intransitive) To revert or (qualifier transitive) to restore. ¹
4. Verb. (transitive) 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. ¹
¹ Source: wiktionary.com