NAA

See naphthalene acetic acid.

NAA

Aviation acronym: National Aviation Authority

NAA

National Academy on Aging
Found on http://www.encyclo.co.uk/local/20895

NAA

National Aphasia Association
Found on http://www.encyclo.co.uk/local/20895

NAA

National Assessment Agency
Found on http://www.educationengland.org.uk/history/glossary.html

naa

not at all
Found on http://www.noslang.com/dictionary/n/
No exact match found