Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
firejlpt4
空く あく to become vacantgodan, jlpt3, jlpt5, leda1, verb, vintrans
九九 くく násobilkaleda1, math
生む うむ to give birth, to deliver, to producegodan, jlpt3, verb, vtrans
四時 よじ 4 o'clocktoki