1Kiten is a Japanese reference/learning tool.
2
3FEATURES
4- Search with English keyword, Japanese reading, or a Kanji string on
5  a list of EDICT files.
6- Search with English keyword, Japanese reading, number of strokes,
7  grade number, or a Kanji on a list of KANJIDIC files.
8- Comes with all necessary files.
9- Very fast.
10- Limit searches to only common entries.
11- Nested searches of results possible.
12- Compact, small, fast interface.
13- Global KDE keybindings for searching highlighted strings.
14- Learning dialog. (One can even open up multiple ones and have them
15  sync between each other.)
16- Browse Kanji by grade.
17- Add Kanji to a list for later learning.
18- Browse list, and get quizzed on them.
19