Altcoin, a term derived from "alternative coin," refers to any cryptocurrency that is not Bitcoin. These altcoins were developed with the intention of improving upon or offering different functionalities and features compared to Bitcoin. While all altcoins fall under the broad category of cryptocurrencies, they distinguish themselves by offering various technological advancements, economic models, or use cases, ranging from enhanced transaction speeds and privacy features to programmability and smart contract capabilities. Examples of well-known altcoins include Ethereum (ETH), Tether (USDT), Ripple (XRP), Cardano (ADA) and several others. 

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