Meaning of nix

(noun) a quantity of no importance; "it looked like nothing I had ever seen before"; "reduced to nil all the work we had done"; "we racked up a pathetic goose egg"; "it was all for naught"; "I didn't hear zilch about it"

(verb) command against; "I forbid you to call me late at night"; "Mother vetoed the trip to the chocolate store"; "Dad nixed our plans"