Patent US 7,603,268

A computer program that indicates lexical impact of various words and phrases in a text, measures the overall lexical impact of the text, and suggests alternatives for various words and phrases of the text. The computer program may include a ranked thesaurus for listing alternative words and phrases (e.g., synonyms, antonyms, related), along with an indication of their relative lexical impacts. The thesaurus may alternatively rank words and phrases according to other ranking systems.