What is the meaning of sealed?

verb

• Make tight; secure against leakage.
  • usage: "seal the windows"
  • synonyms: seal, seal off
• Close with or as if with a seal.
  • usage: "She sealed the letter with hot wax"
  • synonyms: seal
• Decide irrevocably.
  • usage: "sealing dooms"
  • synonyms: seal
• Affix a seal to.
  • usage: "seal the letter"
  • synonyms: seal
• Cover with varnish.
  • synonyms: varnish, seal
• Hunt seals.
  • synonyms: seal

adjective

• Established irrevocably.
  • usage: "his fate is sealed"
  • synonyms: certain
• Closed or secured with or as if with a seal.
  • usage: "my lips are sealed"; "the package is still sealed"; "the premises are sealed"
• Undisclosed for the time being.
  • usage: "sealed orders"; "a sealed move in chess"
• Determined irrevocably.
  • usage: "his fate is sealed"
• Having been paved.
• Covered with a waterproof coating.
  • usage: "a sealed driveway"
• Of walls. ( covered with a coat of plaster).
  • synonyms: plastered