kdrill 6.5deb2-11build1 (armhf binary) in ubuntu bionic

 This package provides a graphical program for learning Japanese
 characters, which also doubles as a dictionary lookup program.
 It requires a dictionary package, such as kanjidic (for learning
 kanji) or kanadic (for learning hiragana or katakana), although
 you can specify a custom dictionary file on the command line.