Vocabulary consisting only from characters you are able to read
十億
じゅうおく
1,000,000,000, billion (American), (obs) milliard (British)mix
万
まん
(num) 10,000, ten thousand, (adv) myriads, alljlpt5
兆し
きざし
signs, omen, symptomsmix
兆
ちょう
(1)sign, omen, indication, portent, (num) (2)10^12, 1,000,000,000,000, trillion (American), (obs) billion (British) mix
七日
なのか
seven days, the seventh day of the monthjlpt5, toki
日銀
にちぎん
(abbr) Bank of Japan, BOJ, BoJmix
緑の日
みどりのひ
(n) Greenery Day (national holiday; May 4)namae, toki