Quick meaning
Preventing a specific person from seeing your content, messaging you, or viewing your profile.
Think of it like this
Like putting up a wall between you and one specific person.
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
Block means: Preventing a specific person from seeing your content, messaging you, or viewing your profile.