Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
間違える mačigaeru to make a mistakeichidan, jlpt3, jlpt4, verb, vtrans
探知機 tančiki detector, locatormix
読書 dokušo readingjlpt3, leda1
恐喝 kjoukacu blackmail;  extortion;  threat (to extort money)mix
氷山 hjouzan ice bergleda1, shizen, tenki