Source : Webster's Revised Unabridged Dictionary (1913)

Nautch \Nautch\, n. [Hind. n[=a]ch, fr. Skr. n[.r]tya dance.]
   An entertainment consisting chiefly of dancing by
   professional dancing (or Nautch) girls. [India]

Source : WordNet®

nautch
     n : an intricate traditional dance in India performed by
         professional dancing girls [syn: {nauch}, {nautch dance}]