Vocabulary consisting only from characters you are able to read
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
絶える
たえる
(1)to die out, to peter out, to become extinct, (2)to cease, to be stopped, to be discontinued, to be cut off ichidan, verb, vintrans
忍者
にんじゃ
ninja (persons in feudal Japan who used ninjutsu for the purposes of espionage, assassination, sabotage, etc.)sensou, shigoto