Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
空く あく to become vacantgodan, jlpt3, jlpt5, leda1, verb, vintrans
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
空手 からて karatesport
手のひら てのひら palmhito
手にする てにする (1)to hold (in one's hand), to take (into one's hand), (2)to own, to obtain suru
そら skyjlpt5, leda1, shizen
空っぽ からっぽ prázdnýleda1
おなじ; おなじく; くりかえし; どうのじてん; のま množné číslo (sometimes voiced); repetition of kanji (sometimes voiced); repetition of kanji (sometimes voiced); repetition of kanji (sometimes voiced); repetition of kanji (jen výjmečně)
handhito, jlpt5