noun

• (architecture) An outside step leading up to the door of a building, usually a home.
  "Ailie was standing by the doorstep as he came down the road, and her heart stood still with joy."
• (figuratively) One's immediate neighbourhood or locality.
  "They want to build the prison right on our doorstep; it will only be half a mile away and being that close scares me."
• (UK, informal) A thick slice, especially of bread.
  "I cut myself a doorstep of bread with masses of butter and went along to see Romanov while I was eating it."

verb

• (intransitive) To visit one household after another to solicit sales, charitable donations, political support, etc.
• (transitive, journalism) To corner somebody for an unexpected interview.
  "Throughout her time in journalism, she doorstepped politicians, the child of a politician, crime victims, armed robbers, murderers, suspected murderers..."