Natal days refer to the day of one's birth, commonly known as a birthday. However, there are many other words to describe this special occasion. Some common synonyms for natal days include anniversary of birth, birthdate, birth anniversary, or simply, the day of birth. Other phrases that can be used to describe this occasion include anniversary of life, celebration of birth, or natal anniversary. Some cultures may also use words like "name day" or "saint's day" to refer to a birthday. Regardless of what term is used, a birthday is a meaningful event that symbolizes the beginning of a new year of life.