Vocabulary consisting only from characters you are able to read
一兆
iččou
1,000,000,000,000, one trillion, one billion (obs. British)mix
大して
taišite
(not so) much, (not) verymix
百
hjaku
(num) 100, hundredjlpt5
億
oku
(num) 100,000,000, hundred millionjlpt4
入口
iriguči
entrance, gate, approach, mouthjlpt5