Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
sora skyjlpt5, leda1, shizen
空っぽ karappo prázdnýleda1
rei zero, noughtjlpt5
空く aku to become vacantgodan, jlpt3, jlpt5, leda1, verb, vintrans
minami southjlpt5