Vocabulary consisting only from characters you are able to read
鼠
ねずみ
(1)mouse, rat, (2)dark gray, dark grey, slate (color, colour); (3)mouse, rat, (4)dark gray, dark grey, slate (color, colour) doubutsu
兆し
きざし
signs, omen, symptomsmix
億
おく
(num) 100,000,000, hundred millionjlpt4