Vocabulary consisting only from characters you are able to read
億
おく
(num) 100,000,000, hundred millionjlpt4
一京
いちきょう
deset trilionůmix
日銀
にちぎん
(abbr) Bank of Japan, BOJ, BoJmix
兆
ちょう
(1)sign, omen, indication, portent, (num) (2)10^12, 1,000,000,000,000, trillion (American), (obs) billion (British) mix