Vocabulary consisting only from characters you are able to read
三日
mikka
three days, the third day of the monthjlpt5, toki
一兆
icchou
1,000,000,000,000, one trillion, one billion (obs. British)mix
上京
joukyou
proceeding to the capital (Tokyo)suru
水力
suiryoku
hydraulic power, water powermix
上る
noboru
(1)to rise, to go up, to come up, to ascend, to be raised, (2)to enter (esp. from outdoors), to come in, to go in, (3)to enter (a school), to advance to the next grade, (4)to get out (of water), t godan, jlpt3, verb, vintrans
七日
nanoka
seven days, the seventh day of the monthjlpt5, toki
大して
taishite
(not so) much, (not) verymix