Meaning of UID
What Does UID Mean? (Using UID Online)UID means "User Identification".
Summary of Key Points
Definition for UIDUID means "User Identification". This is the most common definition for UID on Snapchat, WhatsApp, Facebook, and Twitter. Here is some more information about UID:
2: Quite easy to guess
Adults and Teenagers
A Text with UID
Using UID on a Cell Phone (SMS Texts, Whatsapp, and Yubl)