The Collaborative International Dictionary of English v.0.48:

Pageantry \Pag"eant*ry\ (-r[y^]), n.
   Scenic shows or spectacles, taken collectively; spectacular
   quality; splendor.
   [1913 Webster]

         Such pageantry be to the people shown.   --Dryden.
   [1913 Webster]

         The pageantry of festival.               --J. A.
                                                  Symonds.
   [1913 Webster]

   Syn: Pomp; parade; show; display; spectacle.
        [1913 Webster]

WordNet (r) 3.0 (2006):

pageantry
    n 1: a rich and spectacular ceremony [syn: pageant,
         pageantry]
    2: an elaborate representation of scenes from history etc;
       usually involves a parade with rich costumes [syn: pageant,
       pageantry]

Moby Thesaurus II by Grady Ward, 1.0:

55 Moby Thesaurus words for "pageantry":
   blazon, bravura, brilliancy, ceremony, cosmorama, cyclorama,
   daring, dash, demonstration, diorama, display, dramatics, eclat,
   etalage, exhibit, exhibition, exhibitionism, exposition,
   extravagance, false front, fanfaronade, figure, flair, flaunt,
   flaunting, flourish, georama, histrionics, light show,
   magnificence, manifestation, myriorama, pageant, panorama, parade,
   phantasmagoria, pomp, presentation, psychedelic show,
   representation, sham, shifting scene, show, showiness, showing-off,
   sight, spectacle, splash, splurge, stage show, staginess, tableau,
   tableau vivant, theatrics, vaunt