Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
空く aku to become vacantgodan, jlpt3, jlpt5, leda1, verb, vintrans
空ける akeru vyprázdnit (láhev)ichidan, jlpt3, leda1, verb, vtrans
sora skyjlpt5, leda1, shizen
hači eightjlpt5
八つ jaccu eightjlpt5