What is night vs goodnight?

The terms "night" and "goodnight" both relate to the time of day after the sun has set, but they are used differently in language and communication:

1. Night:

   • "Night" refers to the period of darkness between sunset and sunrise. It's the opposite of day and can vary in length depending on geographical location and time of year.
   • In a broader context, "night" is often associated with various activities such as stargazing, night shifts, nightlife, or events that occur during this time such as concerts or gatherings.

2. Goodnight:

   • "Goodnight" is a phrase commonly used to wish someone well as they prepare to go to sleep. It is generally used as a farewell in the evening or at night.
   • This term is more about social etiquette and communication. It expresses a polite intent, reflecting a desire for the other person to have a restful and peaceful night. People might say it in person, or write it in messages or letters.

In summary, while "night" denotes a time period, "goodnight" is often used socially to convey well-wishes for that time.