What student of the Japanese language has not grappled with the amazing diversity and tantalizingly elusive nuances of its idioms? This dictionary offers the most comprehensive compilation and English translation of those idiomatic expressions that so enrich the Japanese language but that fail to find their way into conventional dictionaries. It presents some 7000 idiomatic phrases under 1000 main entries, including several thousands of idioms that have never been presented and explained in English before. Multiple sample sentences are given for each entry, and furigana allows even beginning students to use the expressions immediately. A thumb index and two-color printing make entries exceptionally easy to access.