[1] : The Collaborative International Dictionary of English v.0.48

movable \mov"able\, a. cf. of. movable. see move.
   1. capable of being moved, lifted, carried, drawn, turned, or
      conveyed, or in any way made to change place or posture;
      susceptible of motion; not fixed or stationary; as, a
      movable steam engine. also spelled moveable.

   syn: transferable, transferrable, transportable.
        1913 webster

   2. changing from one time to another; as, movable feasts, i.
      e., church festivals, the date of which varies from year
      to year.
      1913 webster

   movable letter heb. gram., a letter that is pronounced,
      as opposed to one that is quiescent.

   movable feast ecclesiastical, a holy day that changes
      date, depending on the lunar cycle. an example of such a
      day is easter.
      1913 webster +pjc
see also:
move moveable movable letter movable feast easter 

[2] : The Collaborative International Dictionary of English v.0.48

feast \feast\ f=est, n. oe. feste festival, holiday, feast,
   of. feste festival, f. f^ete, fr. l. festum, pl. festa, fr.
   festus joyful, festal; of uncertain origin. cf. fair, n.,
   festal, f^ete.
   1. a festival; a holiday; a solemn, or more commonly, a
      joyous, anniversary.
      1913 webster

            the seventh day shall be a feast to the lord. --ex.
                                                  xiii. 6.
      1913 webster

            now his parents went to jerusalem every year at the
            feast of the passover.                --luke ii. 41.
      1913 webster

   note: an ecclesiastical feast is called a immovable feast
         when it always occurs on the same day of the year;
         otherwise it is called a movable feast. easter is a
         notable movable feast.
         1913 webster

   2. a festive or joyous meal; a grand, ceremonious, or
      sumptuous entertainment, of which many guests partake; a
      banquet characterized by tempting variety and abundance of
      food.
      1913 webster

            enough is as good as a feast.         --old proverb.
      1913 webster

            belshazzar the king made a great feast to a thousand
            of his lords.                         --dan. v. 1.
      1913 webster

   3. that which is partaken of, or shared in, with delight;
      something highly agreeable; entertainment.
      1913 webster

            the feast of reason, and the flow of soul. --pope.
      1913 webster

   feast day, a holiday; a day set as a solemn commemorative
      festival.

   syn: entertainment; regale; banquet; treat; carousal;
        festivity; festival.

   usage: feast, banquet, festival, carousal. a feast
          sets before us viands superior in quantity, variety,
          and abundance; a banquet is a luxurious feast; a
          festival is the joyful celebration by good cheer of
          some agreeable event. carousal is unrestrained
          indulgence in frolic and drink.
          1913 webster
see also:
fair festal f^ete immovable feast movable feast feast day 
feast banquet festival carousal 

[3] : WordNet (r) 2.0

movable feast
     n : a religious holiday that falls on different dates in
         different years syn: moveable feast
see also:
moveable feast 

Feast >> F Words
Feast, definition of term: Feast
feast_pag1.html

Movable >> M Words
Movable, definition of term: Movable
movable_pag1.html

Moveable Feast >> M Words
Moveable Feast, definition of term: Moveable Feast
moveable+feast_pag1.html