What is the meaning of bonded?

verb

• Stick to firmly.
  • usage: "Will this wallpaper adhere to the wall"
  • synonyms: adhere, hold fast, bond, bind, stick, stick to
• Create social or emotional ties.
  • usage: "The grandparents want to bond with the child"
  • synonyms: bind, tie, attach, bond
• Issue bonds on.
  • synonyms: bond
• Bring together in a common cause or emotion.
  • usage: "The death of their child had drawn them together"
  • synonyms: bond, bring together, draw together