• 億おく

  hundred million, 100,000,000, 10^8

• 十億じゅうおく

  1,000,000,000, billion

• 一億いちおく

  100,000,000, one hundred million

• 数億年すうおくねん

  several hundred million years

• １００億ひゃくおく

  10,000,000,000, ten billion

• 億万おくまん

  millions and millions

• 億兆おくちょう

  the people, multitude, masses

• 億劫おっくう

  troublesome, bothersome, tiresome, annoying

• 千億せんおく

  100,000,000,000, hundred billion

• 巨億きょおく

  millions, vast fortune

• 億り人おくりびと

  person who has a fortune of at least one hundred million yen, millionaire

• 億ションおくション

  apartment worth 100 million yen or more, luxury apartment

• 億万長者おくまんちょうじゃ

  billionaire, multimillionaire, very rich person

• 億劫がるおっくうがる

  to show unwillingness (to do), to be reluctant (to do), to look annoyed, to show signs of finding something bothersome

• 十万億土じゅうまんおくど

  eternity, paradise

• 一億一心いちおくいっしん

  national unity (esp. during wartime)

• 一億総懺悔いちおくそうざんげ

  national confession of Japanese war guilt (1945)

• 一億総中流いちおくそうちゅうりゅう

  all-Japanese-are-middle-class mentality

• 一億総白痴化いちおくそうはくちか

  transformation of the population of Japan into idiots (because of television)