In Catholicism, a saint is anyone who is judged to have lived a holy life, to be in heaven and to be a model Christian worthy of public veneration. Canonization is the process in the Catholic Church by which a deceased person is officially recognized as having joined the “communion of saints” in heaven and therefore able to intercede with God in a special way for people on earth. Capitalize and abbreviate as St. when referring to names of saints, cities and other places. Follow the AP exceptions for the cities of Saint John in New Brunswick and Sault Ste. Marie. See canonization.