Vocabulary consisting only from characters you are able to read
百万
ひゃくまん
(1)1,000,000, one million, million, (2)many mix
十億
じゅうおく
1,000,000,000, billion (American), (obs) milliard (British)mix
兆し
きざし
signs, omen, symptomsmix
億
おく
(num) 100,000,000, hundred millionjlpt4