What student of Japanese has not grappled with the amazing diversity and elusive nuances of its idioms? One would not want to confuse, for example, ki ga mawaru (to be considerate) with ki o mawasu (to be suspicious). And it would be useful to know whether your boss is really hara ga tatsu (angry) or merely ki ga tatsu (irritable). Indeed, even a single idiom can have a bewildering number of meanings depending on context; te o ireru, for instance, can mean fixing up (as a house), asking someone to investigate secretly, or making a raid. This dictionary offers the most comprehensive compilation and English translation of those idiomatic expressions that so enrich the Japanese language but fail to find their way into conventional dictionaries. It presents more than 6000 idiomatic phrases under 1000 main entries, including several thousands of idioms never presented and explained in English before. Multiple sample sentences are given for each entry, and furigana allows even beginning students to pronounce correctly and to use the expressions immediately. A thumb index and two-color printing, with all kanji and kana in red, make entries exceptionally easy to access.