Vocabulary consisting only from characters you are able to read
一京
ichikyou
deset trilionůmix
九日
kokonoka
nine days, the ninth day (of the month)jlpt5, toki
億
oku
(num) 100,000,000, hundred millionjlpt4
十日
tooka
ten days, the tenth day of the monthjlpt5, toki
日銀
nichigin
(abbr) Bank of Japan, BOJ, BoJmix
土日
donichi
weekend, Saturday and Sundaymix