Patriot Day is a holiday in the United States that is observed on the 11th of September every year. It is a day of commemoration and remembrance of the terrorist attacks that occurred on September 11, 2001. This day is also known by other synonyms such as 9/11 Day, Remembrance Day, National Day of Service and Remembrance, and September 11th National Day of Service and Remembrance. Each of these synonyms highlights different elements of the holiday, with some focusing on service and remembrance, while others emphasize the importance of honoring the victims of the attacks. Regardless of which synonym is used, Patriot Day serves as an important reminder of the resilience and determination of the American people in the face of tragedy.