てつや徹夜tetsuya
1.
The act of staying awake throughout the night to engage in a specific activity, often involving work or study.
2.
A night spent without sleep, typically dedicated to completing tasks or fulfilling responsibilities.
3.
A vigil or extended period of alertness during the night, commonly associated with studying, working, or maintaining focus on an important matter.
Example:
私はよく徹夜する。