What does 徹する mean?
徹する is a Japanese verb meaning “to devote oneself, to believe in” in English. It can also be translated as “to devote oneself (to), to do throughout (e.g. the night)” depending on context. It is written as 徹する in kanji, てっする in hiragana, and tessuru in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
夜を徹するか否か。
Should I stay up all night or not?