1. 
   NAA
   Aviation acronym: National Aviation Authority
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
2. 
   NAA
   National Academy on Aging
   Found op http://www.encyclo.co.uk/local/20895
   
   
3. 
   NAA
   National Aphasia Association
   Found op http://www.encyclo.co.uk/local/20895
   
   
4. 
   NAA
   See naphthalene acetic acid.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
5. 
   NAA
   National Assessment Agency
   Found op http://www.educationengland.org.uk/history/glossary.html
   
   
6. 
   naa
   1) Aviation national aviation authority 2) Monogram of a noted astronaut 3) Sports org.
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/naa/1
   
   

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