Vocabulary consisting only from characters you are able to read
立方
たちかた; りっぽう
dancing (geisha); cubesuru
自明
じめい
obvious, self-evident, trivial, axiomatic, self-explanatorymix
五月雨
さみだれ
early-summer rain; early-summer rainmix
国字
こくじ
(1)country's official writing system, native script, (2)kana, (3)kanji that originated in Japan (as opposed to China) bunpou