Definition: In Roman Catholicism, "Anno Domini" refers to the period between Christmas Day and New Year's Day. This period has a specific meaning in religious texts, particularly in liturgical contexts, as it represents the season of Advent, which precedes Lent. However, it is also used in secular culture for special occasions such as weddings or anniversaries. The word "Anno Domini" comes from Latin and means "from the year 6." In this context, it can mean 2019 (the year of Christ's birth), which is the most recent year that falls within this period. It can also refer to a significant event or time in history. For example, if you were going to celebrate an anniversary on New Year's Day in 2019, "Anno Domini" would mean that it was not January 1st of the current year but rather December 31st of that year.