Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
空ける あける vyprázdnit (láhev)ichidan, jlpt3, leda1, verb, vtrans
手がかり てがかり (1)clue, key, trail, scent, track, contact, (2)handhold, on hand mix
空く あく to become vacantgodan, jlpt3, jlpt5, leda1, verb, vintrans
空っぽ からっぽ prázdnýleda1
handhito, jlpt5