A four digits number is used in the book to indicate the rank frequency of a word and to show tendency of American and British using the word.The most used 20,000 words on a database of 290,000 words were selected. Definitions were extracted fromMoreA four digits number is used in the book to indicate the rank frequency of a word and to show tendency of American and British using the word.The most used 20,000 words on a database of 290,000 words were selected.
Definitions were extracted from WordNet 3.0. Please see WordNet 3.0 Copyright notice on the book.The book title may still listed on Princeton University web site.http://wordnet.princeton.edu/wordnet/...