What is the meaning of preference?

noun

• A strong liking.
  • usage: "my own preference is for good literature"; "the Irish have a penchant for blarney"
  • synonyms: penchant, predilection, taste
• A predisposition in favor of something.
  • usage: "a predilection for expensive cars"; "his sexual preferences"; "showed a Marxist orientation"
  • synonyms: predilection, orientation
• The right or chance to choose.
  • usage: "given my druthers, I'd eat cake"
  • synonyms: druthers
• Grant of favor or advantage to one over another (especially to a country or countries in matters of international trade, such as levying duties. ).