Instant access to 274,000 definitions & 500,000 synonyms / antonyms. Patented phonetic spell correction – enter a word the way it sounds & the dictionary will provide alternatives for misspelled words. Includes SAT word list, customized vocabulary list & learning exercises & games. Convenient on-screen help & automatic shut-off. Requires two CR-2032 batteries (incl.). Reference Type: Dictionary; Thesaurus; Display: Four-line display; Language(s): English; Width: 5".