Quick meaning
Linking a person, place, or topic in a social media post so it is associated with them.
Think of it like this
Like writing a name on the back of a photo so people know who is in it.
Where you may see this
You may see this on Facebook, Instagram, TikTok, WhatsApp groups, and other social apps.
Why it matters
Understanding the term helps you use social platforms more comfortably and spot risky or misleading behaviour.
Say it simply
Tag means: Linking a person, place, or topic in a social media post so it is associated with them.