Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
足りない tarinai (1)insufficient/not enough/lacking/ (2)dim-witted/slow/one brick short of a full load adj
化学 kagaku chemistrygakkou, kagaku, leda1
大木 taiboku big treeleda1, shizen
言外 gengai unexpressed, implied, implicitmix
生物 seibucu biology, living thingsgakkou