
1) Aught 2) Cancel 3) Cipher 4) Countermand 5) Counterorder 6) Cousin of nope 7) Cypher 8) Deny 9) Disallow 10) Disallow, so to speak 11) Eighty-six 12) Give a thumbs-down 13) Give a thumbs-down to 14) Give the thumbs down 15) Give the thumbs-down to 16) Give thumbs down 17) Goose egg 18) Invalidate
Found on
https://www.crosswordclues.com/clue/nix

1) Aught 2) Cancel 3) Deny 4) Nada 5) Naught 6) Nihil 7) Nil 8) Nothing 9) Put the kibosh on 10) Scotch 11) Scrap 12) Veto 13) Zilch 14) Zip
Found on
https://www.crosswordclues.com/clue/nix
[moon] Nix is a natural satellite of Pluto. It was discovered along with Hydra in June 2005, and is to be visited along with Pluto by the New Horizons mission in July 2015. == Discovery == Nix was found by the Hubble Space Telescope Pluto Companion Search Team, composed of Hal A. Weaver, S. Alan Stern, Max J. Mutchler, Andrew J. Steffl, Mar...
Found on
http://en.wikipedia.org/wiki/Nix_(moon)

• (fem.) One of a class of water spirits, commonly described as of a mischievous disposition. • (fem.) One of a class of water spirits, commonly described as of a mischievous disposition.
Found on
http://thinkexist.com/dictionary/meaning/nix/

in Germanic mythology, a water being, half human, half fish, that lives in a beautiful underwater palace and mingles with humans by assuming a ...
Found on
http://www.britannica.com/eb/a-z/n/45
Nix noun ;
fem. Nixe [ G. Confer 1st
Nick .]
(Teut. Myth.) One of a class of water spirits, commonly described as of a mischievous disposition. « The treacherous
nixes who entice men to a watery death.»
Tylor. Found on
http://www.encyclo.co.uk/webster/N/25

Nix is slang for not, or nothing.
Found on
http://www.probertencyclopaedia.com/browse/ZN.HTM
No exact match found.