after a brief good night

Does this mean the same thing as "after merely saying 'good night'"?



Yes, that's right

When, at night, people reach the place where they are going to part, they may stand around talking for a while

Or they may just say "goodnight" and then go - that's a brief goodnight

So far as I can see, you can write goodnight or good-night or good night. They are all OK

Senior Member3,220
Proficient Speaker: Users in this role are known to maintain an excellent grasp of the English language. You can only be promoted to this role by the Englishforums team.Trusted Users: Trusted users are allowed to use additional capabilities of the site such as private messaging to all users and various other advanced features. You cannot join this role unless you are promoted by an administrator.
Thank you, Dave! I really appreciate your answer.