Late night
Meaning: This means that the time is after the expected or usual bedtime. It's like saying, I stayed up late last night and watched a movie.
Choice of Words: Late is an adjective that means after the expected or usual time. Night is a noun that refers to the period of time between sunset and sunrise. When you put them together, "Late night" describes a period of time that is after the expected or usual bedtime.
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Related Expressions