Token : It is symbol and/or representative of issuing body which could be either established entity or ICO itself. Token represent you as the share holder of investment that you have made into that entity/ICO itself.

Entity would be matured company while ICO is Initial Coin Offering stage which is nothing but first appearance of that specific entity.

For example, Bitcoin is symbolised token of Bitcoin crypto project itself which provides you with means of transaction, store value etc.

You can use token for the purpose of its utility within or outside that project!

You can get your tokens from the direct purchases made in the ICO stages, if they are on exchanger then you can buy them or you can earn free from the bounty campaigns.