Definitions
1.nounThe numeric symbol that represents the cardinal number zero."In unary and k-adic notation in general, zero is the empty string."
2.nounThe digit 0 in the decimal, binary, and all other base numbering systems."One million has six zeroes."
3.nounNothing, or none."He knows zero about humour."
4.nounThe value of a magnitude corresponding to the cardinal number zero."The electromagnetic field does not drop all of the way to zero before a reversal."
5.nounThe point on a scale at which numbering or measurement originates."The temperature outside is ten degrees below zero."
6.nounA value of the independent variables of a function, for which the function is equal to zero."The derivative of a continuous, differentiable function that twice crosses the axis must have a zero."
7.nounThe additive identity element of a monoid or greater algebraic structure, particularly a group or ring."Since a commutative zero is the inverse of any additive identity, it must be unique when it exists."
8.nounA person of little or no importance."They rudely treated him like a zero."
9.nounA Mitsubishi A6M Zero, a long range fighter aircraft operated by the Japanese Navy Air Service from 1940 to 1945.
10.nounA setting of calibrated instruments such as a firearm.
11.nounA security which has a zero coupon (paying no periodic interest)."The takeovers were financed by issuing zeroes."