Meanings
a (religious) holiday
feast day (a day in which a saint's life is commemorated and in which God is praised for working through that person's life by His grace)
a holiday (in general)
a (person's) special day, a (person's) day to celebrate (such as a birthday or anniversary)
in the plurala period of time in which a series of festivals take place
festive day
„Ich antwortete ihr unverzüglich, daß sie mich an allen Festtagen in ihrer Kirche bei der Messe sehen werde; ich habe auch sofort damit begonnen.“