Festival at the end of Ramadan, informally

EID

This joyful three-day celebration often begins with a special prayer at sunrise and includes feasting, gift-giving, and wearing new clothes. It marks the breaking of the fast in many Muslim communities.

This clue refers to Eid al-Fitr, the Islamic holiday marking the end of Ramadan, when Muslims break their month-long fast with celebrations. The word "informally" signals that the answer is the shortened, everyday version of the name—just "Eid" instead of the full term. It’s a common cultural shorthand, like calling Christmas "Xmas," so solvers familiar with the holiday would recognize it right away.