Mouse Dictionary is a super fast dictionary for Google Chrome. Designed mainly for English and Japanese. Features: * Super fast!!! * Awesome phrases detection * Capable of importing your own text data * Customizable view * Available on various documents: * PDF documents * YouTube captions * input elements * textarea -------- In addition to the built-in default English-Japanese dictionary, you can import data as you like including Japanese-English, English-English and so on. Please check here. https://github.com/wtetsu/mouse-dictionary/wiki/Download-dictionary-data