Definition of demimonde in English:

demimonde

noun

  • 1(in 19th-century France) the class of women considered to be of doubtful morality and social standing.

    • ‘Whereas upper-class prostitutes of the demi-monde were involved in sexual liaisons outside marriage in order to gain influence and social advantage, most whores were regarded as social lepers.’
    1. 1.1 A group of people considered to be on the fringes of respectable society.
      ‘the demimonde of arms deals’
      • ‘In this opening section he does a good job of introducing the reader to the demimonde of pulp writers and how the industry that published them worked.’

Origin

Mid 19th century: from French demi-monde, literally half-world.

Pronunciation:

demimonde

/ˈdemēˌmänd/