Letters that make holy day
a, o, d, l, h, y are letters that make 'holy day'
1 possible definitions for 'holy day'
Under this definition, holy day is a noun and has the following properties:
religious holiday has the same meaning as holy day
'holy day' can be a type of holiday.
fast day, Christian holy day, Jewish holy day, Dormition, Feast of Dormition are types of 'holy day'.
'holy day' can be a part of church year, Christian year.