Validation rules
A set of principles and criteria used to validate the encoded data and verify it.
Vanity address
A cryptocurrency address made readable for a human being.
Velocity of money
Basically, it's how fast money is being exchanged. A number of iterations of money transfer in a certain period of time.
Virgin Bitcoin
A Bitcoin that was just mined and yet to be used in transactions.
Volatility
A measure indicating the dispersion of returns when it comes to a certain security or market index. High volatility almost always means high risk of dealing with security.