So waves is an exchange and also allows for ICOs to be performed somewhat like Ethereum.
... but What exactly is the Waves token used for?
We know that waves have its own wallet where it use waves as its own token decentralize exchanger and theses wallet or waves wallet is so popular when receive new token or ICO toke in the market and usually recommended by a lot of token also waves is also a investment and use in transaction fees in the waves wallet.