Vocabulary consisting only from characters you are able to read
二人
futari
two persons, two people, pair, couplejlpt5
十億
juuoku
1,000,000,000, billion (American), (obs) milliard (British)mix
一兆
icchou
1,000,000,000,000, one trillion, one billion (obs. British)mix
百
hyaku
(num) 100, hundredjlpt5