Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
寝る ねる to lie down, to sleepichidan, jlpt5, verb, vintrans
下宿 げしゅく lodgejlpt4, uchi
おろし器 おろしき graterryouri
弱い よわい weakadj, jlpt5
閉集合 へいしゅうごう closed setmath