What does "Yom Tov" signify in Halacha?

In Halacha, "Yom Tov" refers specifically to Jewish festivals that have distinct Halachic observances, marking them as special days that incorporate both joyous celebration and specific religious practices. These festivals, such as Passover and Sukkot, involve unique commandments, including specific restrictions and requirements around work, food, and prayer. Each Yom Tov has its own set of laws that govern how it is celebrated, such as the prohibition of certain types of work and the obligation to engage in special meals and festive rituals.

While a day of rest and reflection is indeed an aspect of Yom Tov, it is not the only significance; the focus is on the unique Halachic framework that defines how the day is observed, and that sets these festivals apart from regular Shabbat or other days. A mourning period is unrelated to the joyful nature and observances of Yom Tov, and special prayer services occur during Yom Tov as well but are part of the broader Halachic context rather than defining the day itself.