Definitions of polished:

• adjective:   perfected or made shiny and smooth

  Example: "His polished prose"

• adjective:   showing a high degree of refinement and the assurance that comes from wide social experience

  Example: "His polished manner"

• adjective:   (of grains especially rice) having the husk or outer layers removed

  Example: "Polished rice"

• adjective:   (of lumber or stone) to trim and smooth