Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
主に おもに mainly, primarilymix
いわ rock (boulder)kagaku, leda1, shizen
化石 かせき zkamenělina, fosílieleda1
風通し かぜとおし ventilationuchi
安心 あんしん peace of mind, reliefemo, jlpt4, leda1