Quick meaning
A category of notifications from an app that can be individually turned on or off.
Think of it like this
Like having separate switches for each type of news alert from a newspaper — you can turn off sports but keep headlines.
Where you may see this
You may hear this in email apps, messaging apps, video calls, and workplace instructions.
Why it matters
Knowing the term makes it easier to message people correctly and avoid simple communication mistakes.
Say it simply
Notification Channel means: A category of notifications from an app that can be individually turned on or off.