Word Study
fast day
WORDNET DICTIONARY
Noun fast day has 1 sense
- fast day(n = noun.time) Array - a day designated for fasting; Array has particulars: major fast day, minor fast day
is a kind of holy day, religious holiday
ROGET THESAURUS
fast day
Fasting
N fasting, xerophagy, famishment, starvation, fast, jour maigre, fast day, banyan day, Lent, quadragesima, Ramadan, Ramazan, spare diet, meager diet, lenten diet, lenten entertainment, soupe maigre, short commons, Barmecide feast, short rations, lenten, quadragesimal, unfed, starved, half-starved, fasting, hungry.
For further exploring for "fast day" in Webster Dictionary Online