Vocabulary consisting only from characters you are able to read
十億
じゅうおく
1,000,000,000, billion (American), (obs) milliard (British)mix
一口
ひとくち
(1)mouthful, bite, sip, draft, draught, (2)one word mix
恋愛
れんあい
love/love-making/passion/emotion/affections/(P)ai, jlpt3, suru
後
あと
afterwards, since then, in the futurejlpt5, toki
百万
ひゃくまん
(1)1,000,000, one million, million, (2)many mix