In Telegram Messenger, at the bottom of each message, there are two numbers. One is the time that the message has been sent, and the other is a number near an eye symbol. Does anyone know what this number means?
As per Telegram's official blog:
Each post in a channel has its own view counter.
Views from forwarded copies of your messages will be included in the total count.
That eye icon is usually used to depict the total page or post views. For example, Quora uses a similar icon:
You can find some more icons here.