What is the meaning of props?

noun

• A support placed beneath or against something to keep it from shaking or falling.
  • synonyms: prop
• Any movable articles or objects used on the set of a play or movie.
  • usage: "before every scene he ran down his checklist of props"
  • synonyms: property, prop
• A propeller that rotates to push against air.
  • synonyms: airplane propeller, airscrew, prop
• Proper respect.
  • usage: "I have to give my props to the governor for the way he handled the problem"

verb

• Support by placing against something solid or rigid.
  • usage: "shore and buttress an old building"
  • synonyms: prop up, prop, shore up, shore