What Does G9 Mean?

G9 means "Goodnight" as in "Goodnight sleep tight" and not "It was a good night."

When "G" and "nine" are said quickly together, it sounds a little like "goodnight."

For unclear reasons, G9 is also used to mean "genius" or "beautiful ex-girlfriend."

Summary of Key Points

"Good Night" is the most common definition for G9 on Snapchat, WhatsApp, Facebook, Twitter, Instagram, and TikTok.
Definition:Good Night
3: Guessable
Typical Users:
Adults and Teenagers

Image for G9

When I write G9, I mean this:

meaning of G9
G9 means goodnight.


Examples of G9 in Sentences

Here are examples of G9 being used in conversations:
  • Peter: I'm going to bed now. Speak tomorrow. G9.
  • Janet: Okay, talk some more then.
  • Steve: Do you fancy coming to the party later?
  • Jason: I'm having an early night. G9.

An Academic Look at G9

G9 is defined as a cyber term because some of its characters are used as substitutes for letters. Most cyber terms were introduced to reduce the number of key strokes required to write the word, but since the arrival of predictive texting and keyboards on mobile devices, this efficiency is no longer required. Nevertheless, cyber terms are still regularly used to make messages more entertaining or to express individuality. Cyber terms differ from icons because they are not pictorial representations.

What Did We Say before Texting and Social Media?

Before the digital era, we would have just said "goodnight" instead of G9.

Using Numbers in Texts

This video shows the different ways that numbers are used in "text speak":

Example of G9 Used in a Text


See Also

GN (good night) GNE (good night and everything) GNSD (good night sweet dreams) GNSTDLTBBB (good night sleep tight don't let the bed bugs bite) BOFFIN (geek or expert) EX (former partner)