Derelict

• Abandonment of property, then referred to as a 'derelict'
• Dereliction of duty, abandoning one's post

But may also refer to:

• Derelict soil, land that has been damaged by industrial or other development activity
• The Derelict, a 1912 short story by William Hope Hodgson
• The Derelicts, a 1970s British R&B band
• Derelict (song), a fictional sea-shanty from the novel Treasure Island, by Robert Louis Stevenson
• A song by Beck on the album Odelay