Look up na, n/a, Na, NA in Wiktionary, the free dictionary.

Na may refer to:

• Na, the chemical symbol for Sodium
• Na, a tribal people also known as the Nga people, from Arunachal Pradesh, the easternmost state of India
• Na, a small ethnic group also known as the Mosuo, from Yunnan and Sichuan Provinces in China
• Na (tree), Mesua ferrea a tree native to Sri Lanka, India, southern Nepal, Indochina, and the Malay Peninsula
• Na (kana), the な or ナ kana in the Japanese language
• Nakoku, or Na no kuni (奴の国), an ancient Japanese kingdom

N/A may refer to:

• n/a or N/A, short for not available or not applicable, used to indicate the deliberate omission of information
• Neurotics Anonymous (N/A), a twelve-step program of recovery from mental and emotional illness

NA may refer to:

• Avogadro's number—abbreviated to N_A
• Namibia (ISO country code)
• Narcotics Anonymous, a twelve-step program of recovery from drug addiction
• One of several National Alliances
• National Association, the official designation of federally-chartered banks in the United States
• National Association of Professional Base Ball Players (the sole professional "league" 1871-1875)
• National Association of Professional Baseball Leagues (minor league baseball since December 1901)
• Naturally-aspirated engine (Normally-aspirated engine)
• Naughty America—a pornography company in the United States
• Negative Approach, 1980s American hardcore punk band
• New Africa—a North American Black nationalist group
• Neighborhood association (see neighbourhood)
• Neo-Aramaic languages
• Nestle-Aland
• Noradrenaline
• North America
• North American Airlines—IATA airline designator
• One of several Northern Alliances
• Nuclear Assault, band
• Nucleic acid
• Numerical aperture—a specification in optical systems
• The Virgin New Adventures series of Doctor Who novels
• Norfolk Academy
• N.A. was a Manhattan (New York) Nightclub, named after its owner Noel Ashman. The club is now closed and the space houses The Plumm. It was once the home of Nell's
• Province of Naples, a province of Italy

nA may stand for:

• Nanoampere, an SI unit of electric current (defined as 10⁻⁹ A)

See also

• Na Na
• Na Na Na Na Naa
• Hey Jude
• Land of a Thousand Dances

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