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
笑い
わらい
(1)laugh/laughter/ (2)smile/ (3)sneer/(P) jlpt3
紅白
こうはく
red and white, colours for festive or auspicious occasions (colors)iro
原
はら
field/plain/prairie/tundra/moor/wilderness/(P)leda1
やる気
やるき
willingness (e.g. to do something)/eagerness/motivation/inspiration/determination/high aspirationsjlpt3
猫背
ねこぜ
bent back, hunchback, stoopmix
長蛇
ちょうだ
(1)long snake, (2)long line (of people, etc.) mix