What is the meaning of derelict?

noun

• A person without a home, job, or property.
• A ship abandoned on the high seas.
  • synonyms: abandoned ship

adjective

• Worn and broken down by hard use.
  • usage: "a creaky shack"; "a decrepit bus... Its seats held together with friction tape"; "a flea-bitten sofa"; "a run-down neighborhood"; "a woebegone old shack"
  • synonyms: creaky, decrepit, flea-bitten, run-down, woebegone
• Forsaken by owner or inhabitants .
  • usage: "weed-grown yard of an abandoned farmhouse"
  • synonyms: abandoned, deserted
• Failing in what duty requires.
  • usage: "derelict (or delinquent) in his duty"; "neglectful of his duties"; "remiss of you not to pay your bills"
  • synonyms: delinquent, neglectful, remiss
• In deplorable condition.
  • usage: "a street of bedraggled tenements"; "a broken-down fence"; "a ramshackle old pier"; "a tumble-down shack"
  • synonyms: bedraggled, broken-down, dilapidated, ramshackle, tatterdemalion, tumble-down