What is the meaning of promote?

verb

• Contribute to the progress or growth of.
  • usage: "I am promoting the use of computers in the classroom"
  • synonyms: advance, boost, further, encourage
• Give a promotion to or assign to a higher position.
  • usage: "John was kicked upstairs when a replacement was hired"; "Women tend not to advance in the major law firms"; "I got promoted after many years of hard work"
  • synonyms: upgrade, advance, kick upstairs, raise, elevate
• Make publicity for; try to sell (a product. )
  • usage: "The salesman is aggressively pushing the new computer model"; "The company is heavily advertizing their new laptops"
  • synonyms: advertise, advertize, push
• Be changed for a superior chess or checker piece.
• Change a pawn for a better piece by advancing it to the eighth row, or change a checker piece for a more valuable piece by moving it to the row closest to your opponent. .