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"Good night" is a form of "good night", a phrase which is often translated as "buenas noches". "Sleep tight" is a phrase which is often translated as "que duermas bien". Learn more about the difference between "good night" and "sleep tight" below.
good night()
A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)
sleep tight()
A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)