JMdict: 2849913

三徹 【さんてつ】

  1. [n,vs] staying up all night three nights in a row; triple all-nighter
Search on Immersion Kit
Search on Forvo

Kanji in this word:

Kanji Meanings On Readings Kun Readings Grade
三 Three サン, ゾウ み, み.つ, みっ.つ 1
徹 Penetrate, Clear, Pierce, Strike Home, Sit Up (all Night) テツ