There are two types of Cryptocurrency wallets, namely a Custodial wallet - the private key is held by a third party and a Non-Custodial wallet - the users are in full control of their digital assets.
A crypto faucet is an app or site that pays a small amount of cryptocurrency to users for completing simple tasks, even though the rewards are often very small.
Over-the-counter (OTC) trading is trades made directly between two parties without the mediation of a third-party exchange typically using an OTC desk.