Ordination/ˌɔːrdnˈeɪʃn/ Definition 1 of 2Pro Tip 1/3Religious events Refers to special ceremonies in Christian churches involving religious authority. Her ordination into the ministry was a solemn event. Pro Tip 2/3Career milestone Marks an important step in the career of religious leaders, like becoming a priest or minister. After his ordination, he led his first Mass. Pro Tip 3/3Ritual significance Involves specific rituals or customs that may differ across various Christian denominations. Each denomination has its own ordination traditions.