nix

(noun) a quantity of no importance. Synonyms: nothing, nil, nada, null, aught, cipher, cypher, goose egg, naught, zero, zilch, zip, zippo. Examples: "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. Synonyms: forbid, prohibit, interdict, proscribe, veto, disallow. Examples: "I forbid you to call me late at night." "Mother vetoed the trip to the chocolate store." "Dad nixed our plans."