This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

徹夜

Reading

Kana: てつや
Romaji: tetsuya
Kana
Romaji

Definition

vs
1

all night; all-night vigil; sleepless night

Kanji

Reading: テツ
Meanings: penetrate, clear, pierce, strike home, sit up (all night)
Readings: ヤ、 よ、 よる
Meanings: night, evening

Example Sentences

(わたし)徹夜(てつや)した。
➥I sat up all night.
Full Entry➤
(わたし)はよく徹夜(てつや)する。
➥I often stay up all night.
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(おとうと)はよく徹夜(てつや)をする。
➥My brother will often sit up all night.
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徹夜(てつや)勉強(べんきょう)した。
➥I worked all night.
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(わたし)徹夜(てつや)しました。
➥I stayed up all night.
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(かれ)小説(しょうせつ)()んで徹夜(てつや)した。
➥He sat up all night reading a novel.
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