What is the meaning of surfacing?

noun

• Emerging to the surface and becoming apparent.

verb

• Come to the surface.
  • synonyms: surface, come up, rise up, rise
• Put a coat on; cover the surface of; furnish with a surface.
  • usage: "coat the cake with chocolate"
  • synonyms: coat, surface
• Appear or become visible; make a showing.
  • usage: "She turned up at the funeral"; "I hope the list key is going to surface again"
  • synonyms: come on, come out, turn up, surface, show up