0C (zero C) or 0-C may refer to: 0 °C, the melting point of ice on the Celsius scale 0C, or zero carbon Zero carbon building Zero carbon city 0 configuration networking, or zero-configuration networking, a set of techniques that automatically creates a usable Internet Protocol (IP) network 0-coupon bond, or Zero-coupon bond, a type of discount bond 0 copula, or Zero copula, a linguistic phenomenon where a subject is joined to a predicate without overt marking of this relationship 0 crossing, or Zero crossing, a point where the sign of a function crosses the zero axis 0 consonant, or Zero consonant, a consonant-like letter that is not pronounced
See also C0 (disambiguation) OC (disambiguation)