satanism

/S EY1 T AH0 N IH0 Z AH0 M/
noun
  1. 1

    Worship of Satan (usually synonymous with "the Devil").

    โ€œReligious groups that follow Satanism include Luciferians and Laveyans.โ€

  2. 2

    A profession, philosophy, or ideological construct featuring a positive, admirable, or useful association to the figure, character or entity known as 'Satan'; or, featuring opposition to all morality and the procurement of what is wanted regardless of the consequences concerning others.

  3. 3

    LaVeyan Satanism.

  4. 4

    A devilish disposition.

Source: https://en.wiktionary.org/wiki/Satanism, https://en.wiktionary.org/wiki/satanism