深夜

late at night, the middle of the night

ʂ ə n ⁵ ⁵ j ɛ ⁵ ¹

noun Rare #24,807

late at night, the middle of the night Refers to a late or very late time at night.

CH: 他常常工作到深夜。

EN: He often works late into the night.

In the past, my father often drank until late at night.