四よん十じゅう

numeric

forty; 40

The number forty. Reading よんじゅう is the modern standard; しじゅう is a less common Sino-Japanese reading still used in some fixed contexts like age or traditional counting. よそ is obsolete.

• 彼かれは今年ことしで四よん十じゅっ歳さいになります。

  He will be forty years old this year.

• このクラスには四よん十じゅう人にんの学がく生せいがいます。

  There are forty students in this class.