here your answers.
It's very important to note that all coins or tokens are regarded as cryptocurrencies, even if most of the coins do not function as a currency or medium of exchange.
"Tokens:
Tokens are a representation of a particular asset or utility, that usually resides on top of another blockchain. Tokens can represent basically any assets that are fungible and tradeable, from commodities to loyalty points to even other cryptocurrencies!
Creating tokens is a much easier process as you do not have to modify the codes from a particular protocol or create a blockchain from scratch. All you have to do is follow a standard template on the blockchain such as on the Ethereum or Waves platform that allows you to create your own tokens. This functionality of creating your own tokens is made possible through the use of smart contracts; programmable computer codes that are self-executing and do not need any third-parties to operate. It really is super cool!"
Altcoin:
"Alternative cryptocurrency coins are also called altcoins or simply coins. Theyre often used interchangeably. Altcoins simply refers to coins that are an alternative to Bitcoin. The majority of altcoins are a variant (fork) of Bitcoin, built using Bitcoins open-sourced."