1. An electronic dictionary comprising: a storage section for storing headwords and attribute information related to said headwords; a display section for displaying said headword and said attribute information; a selecting section for selecting an arbitrary item of said attribute information; a style selecting section for applying a highlight style which has been used least frequently among a variety of highlight styles to said selected item; and a display control section for displaying at least one of a title and said attribute information of said selected item in a style different from a style used for a non-selected item.