operetta

from WordNet (r) 3.0 (2006)

operetta
    n 1: a short amusing opera [syn: {operetta}, {light opera}]

from The Collaborative International Dictionary of English v.0.48

Operetta \Op`er*et"ta\, n. [It., dim. of opera.] (Mus.)
   A short, light, musical drama.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

25 Moby Thesaurus words for "operetta":
      Broadway musical, Singspiel, ballad opera, ballet,
      ballet divertissement, chorus show, comedy ballet, comic opera,
      dance drama, grand opera, light opera, lyric drama, minstrel,
      minstrel show, music drama, musical, musical comedy, musical stage,
      musical theater, opera, opera ballet, opera bouffe, opera buffa,
      song-and-dance act, song-play