(mathematics) a vector whose value in every dimension is zero. i.e. ⃑0=<0,0,…,0> / (linear algebra) a vector 0 in a vector space V such that for any v∈V, 0+v=v

(computing) A signed magnitude representation of zero in which the sign bit indicates a positive number.

(computing) A signed magnitude representation of zero in which the sign bit indicates a negative number.

Alternative spelling of nonzero

(geometry) Having zero dimensions; having no extent in any direction.

(military) The location of the center of a burst of a nuclear weapon at the instant of detonation. The zero point may be in the air, or on or beneath the surface of land or water, depending upon the type of burst, and it is thus to be distinguished from ground zero.

(physics) associated with zero on any scale, but particularly with a temperature of absolute zero

The start of the first hour of the day on the 24-hour clock, i.e. 0:00, military time.

plural of zero tensor

Alternative form of status zer0 / (of emergency dispatchers) A status of having no available emergency vehicles or personnel to handle incoming calls. / (New Zealand) Death.