Zero is the English word for the numerical digit 0. Therefore, it is the absence of any sort of quantity, or the first natural number in the sequence of numbers starting from one. In the decimal number system, zero is the digit which follows nine, before one. It is a natural mathematical representation for nothing and emptiness, instead of a placeholder, like none. Zero is usually associated with nothing; however, this doesn’t mean that it occurs without practical use. In fact, zero is practically used in various spheres of life. In mathematics, zero is used as a placeholder symbol and in calculative operations, it is used to show the outcome after all the given numerical quantities are considered or subtracted. In physics, zero is used to denote the temperature at which molecules, atoms and particles within a system, have stopped motion and have reached their lowest energy state. In computing, zero is denoted using base 2 binary code and is used in various applications, such as voice recognition and computation. In finance, the digit zero is used to denote insolvency of a company and it can also indicate the exchange rates between currencies, as well as the rate at which money is being lent. In literature, zero has been used to represent emptiness and nothingness. Thus, it is not wrong to say that zero has immense uses in various forms of life, even though it denotes nothing.