/ Dictionary / Index N nix: Meaning and Definition of Find definitions for: nix Pronunciation: (niks), [key] — Slang. Slang. —n. nothing. —adv. no. —interj. (used as an exclamation, esp. of warning): Nix, the cops! —v.t. to veto; refuse to agree to; prohibit: to nix the project. nix Pronunciation: (niks), [key] — pl. nix•es. (in Germanic folklore) a water spirit that draws its victims into its underwater home. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nix (Thesaurus) Nivôse nixie Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language