Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
開集合 かいしゅうごう open setmath
さと (1)village/hamlet/ (2)countryside/country/ (3)home (of one's parents, etc.)/hometown/ (4)one's origins/one's upbringing/one's past leda1
無事 ぶじ safety, peace, quietnessmix
大変 たいへん awful, dreadful, terrible, very, seriousadj, jlpt5
地名 ちめい place namenamae