1. 
   NCO
   Non-commissioned officer.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
2. 
   NCO
   Non-Commissioned Officer
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
3. 
   NCO
   [Naval Acronyms and Slang] Non Commissioned Officer
   Found op http://www.encyclo.co.uk/local/21733
   
   
4. 
   NCO
   Non-Commissioned Officer
   Found op http://en.wikipedia.org/wiki/List_of_U.S._government_and_military_acronyms
   
   
5. 
   nco
   1) ... club (military hangout) 2) Abbreviation for non-commissioned officer 3) Agarn or o'rourke, in 'f troop'
   Found op abbr. 4) Army e-5, e.g. 5) Army fig. 6) Army figure,
   
   

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