What is the meaning of meld?

noun

• A form of rummy using two decks of cards and four jokers; jokers and deuces are wild; the object is to form groups of the same rank.
  • synonyms: canasta, basket rummy

verb

• Announce for a score; of cards in a card game.
• Lose its distinct outline or shape; blend gradually.
  • usage: "Hundreds of actors were melting into the scene"
  • synonyms: melt
• Mix together different elements.
  • usage: "The colors blend well"
  • synonyms: blend, flux, mix, conflate, commingle, immix, fuse, coalesce, combine, merge