1. To visit often; to frequent: They haunted the movie theaters at least twice a week.
2. To obsess the mind constantly until it is relieved by coming to a solution: Not knowing the meaning of the word haunted Harriet until she found its definition.
3. To be continually present in; to pervade: All of the terrible things that are happening in the world haunt a lot of people.
4. To inhabit, to visit, or to appear in the form of a ghost or other supernatural being: There were those who thought the old house was being haunted by ghosts because of the strange noises that the neighbors frequently heard late in the nights.

1. Upset or troubled: Mike was a strange person who always appeared to have haunted feelings about what happened to his son during the war.
2. Lived in or visited by ghosts: That haunted house kept people away from it, including those who otherwise wanted to break in.