Bitcoin family and other coins

Which question would help you?

These categories separate BTC, fork coins and the project family; they do not show a shared chain.

What does the Bitcoin family mean?
Similar names can refer to different assets. Bitcoin (BTC), coins that split from it, and the Bitcoin Ecosystem project family need separate explanations.
How do other coins differ?
Other coins can use different rules and serve different purposes. Ethereum runs programs on a blockchain. Stablecoins aim to track a reference value. Neither is the same as Bitcoin.
What is a stablecoin?
A stablecoin is a token designed to track a reference such as the US dollar. The word stable describes an aim, not a guarantee that you can always exchange it at that value.
What is Ethereum?
Ethereum is a blockchain platform that can run programs called smart contracts. Its native asset is called ether, with the short label ETH. It is a different system from Bitcoin.
Is a token the same as a coin?
People use coin and token in different ways. Often coin means a network's native asset, while token means an asset recorded through a platform. The labels alone are not enough to identify either.

A coin can use the word Bitcoin in its name without sharing BTC's rules. Read what it is before treating the name as a connection.

Sources