(usually used attributively, finance) A non-existent coupon. / (finance) A financial security that does not pay interest periodically.

Alternative spelling of overzealous

(computing, idiomatic) (of vulnerability) newly discovered, and therefore still not fixed and possibly exploited by hackers or other criminals

(computing, idiomatic) vulnerability that has been discovered recently, and is yet unpatched or unmitigated; zero-day vulnerability

(mineralogy) Obsolete name for a supposed mineral, later reclassified as a mixture of phillipsite with gismondine or levynite.

plural of zero-based budget

plural of zero tensor

A surname.

(Indo-European linguistics) In Proto-Indo-European linguistics, an ablaut form of a root characterized by the absence of the basic ablauting vowel phonemes */e/ and */o/.

The dialect of Danish spoken in Zealand, island in the North Sea. / Alternative spelling of Zeelandic, a language spoken in Zeeland, province of the Netherlands.