lurk lurk /ˈlɝːk/

verb

1. () Lie in wait, lie in ambush, behave in a sneaky and secretive manner  ( skulk , lurk )
   lie in wait, lie in ambush, behave in a sneaky and secretive manner
     Dark secrets lurk in the shadows of the haunted house.
   Dark secrets lurk in the shadows of the haunted house.
   
2. () Be about  ( footle , lallygag , loaf , loiter , lollygag , lounge , lurk , mess about , mill around , hang around , linger , mill about , tarry )
   be about
    The high school students like to loiter in the Central Square
   The high school students like to loiter in the Central Square
    Who is this man that is hanging around the department?
   Who is this man that is hanging around the department?
   
3. Wait in hiding to attack  ( ambuscade [Archaic] , lurk , scupper [Informal] , ambush , bushwhack [ N. American] , lie in wait , waylay )
   wait in hiding to attack