0 is a number representing an empty quantity. Adding 0 to any number leaves that number unchanged; in mathematical terminology, 0 is the additive identity of the integers, rational numbers, real numbers, and complex numbers, as well as other algebraic structures. Multiplying any number by 0 results in 0, and consequently division by zero has no meaning in arithmetic. As a numerical digit, 0 plays a crucial role in decimal notation: it indicates that the power of ten corresponding to the place containing a 0 does not contribute to the total. For example, "205"... Wikipedia

• Cardinal:  0, zero, "oh", nought, naught, nil
• Ordinal:  Zeroth, noughth, 0th
• Latin prefix:  nulli
• Arabic, Kurdish, Persian, Sindhi, Urdu:  ٠
• Hindu numerals:  ०
• Chinese:  零, 〇
• Burmese:  ၀
• Khmer:  ០
• Thai:  ๐
• Assamese, Bengali:  ০
• Maya numerals:  𝋠