Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
sora skyjlpt5, leda1, shizen
空く aku to become vacantgodan, jlpt3, jlpt5, leda1, verb, vintrans
手がかり tegakari (1)clue, key, trail, scent, track, contact, (2)handhold, on hand mix
空っぽ karappo prázdnýleda1
手のひら tenohira palmhito