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Meaning of SIO

What Does SIO Mean? (Using SIO Online)

SIO means "Bye".
Summary of Key Points

Definition for SIO

SIO means "Bye". This is the most common definition for SIO on Snapchat, WhatsApp, Facebook, and Twitter. Here is some more information about SIO:

SIO
Definition:Bye
Type:Abbreviation
Guessability:
3: Guessable
Typical Users:
Adults and Teenagers
A Text with SIO

Using SIO on a Cell Phone (SMS Texts, Whatsapp, and Yubl)

 
SIO
 

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