Vocabulary consisting only from characters you are able to read
億
oku
(num) 100,000,000, hundred millionjlpt4
百
hjaku
(num) 100, hundredjlpt5
百万
hjakuman
(1)1,000,000, one million, million, (2)many mix
十億
džuuoku
1,000,000,000, billion (American), (obs) milliard (British)mix
一兆
iččou
1,000,000,000,000, one trillion, one billion (obs. British)mix
兆し
kizaši
signs, omen, symptomsmix
百京
hjakukjou
kvadrilionmix