What term describes ceremonies that mark transitions in life such as baptism, marriage, and funerals?

The term that describes ceremonies marking transitions in life, such as baptism, marriage, and funerals, is "Rites of Passage." This term specifically refers to rituals and ceremonies that signify an individual's transition from one state or stage of life to another. Rites of Passage often involve significant life events and are deeply rooted in cultural traditions. These ceremonies reflect the collective beliefs and values of a community around key life transitions, thus emphasizing their importance in both personal and social contexts.

While "Cultural Celebrations" might encompass a broader array of events and festivals, it does not specifically focus on the life transitions represented by Rites of Passage. Similarly, "Life Milestones" could describe significant events or achievements in a person's life, but it lacks the ritualistic aspect that is inherent in Rites of Passage. Lastly, "Traditional Observances" can apply to various practices and ceremonies but does not specifically highlight the transitional nature of the rites associated with significant life changes. Therefore, Rites of Passage is the most accurate term for these ceremonies.