The Fediverse
The fediverse is a word derived from the combination of federation and universe. Its implied meaning is therefore an interconnected universe.
This universe is made up of independent servers across the internet, all using a common language to communicate. More accurately referred to as a communication protocol. Using this commonality, the servers, and therefore its users, are able to share and interact with content from other federated servers.
This could be simple text, blog posts, images, videos…..
Communications Protocol
A typical user need not worry about the protocol used around the fediverse, as it is handled by the servers when they 'chat'!
ActivityPub is the most commonly adopted protocol.
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