Editing Na

{{Wiktionary|na|Na|nA|NA}}
'''NA''', '''N.A.''', '''Na''', '''nA''' or '''n/a''' may refer to:
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==Chemistry and physics==
* [[Sodium]], symbol Na, a chemical element
* [[Avogadro constant]] (''N''<sub>A</sub>)
* [[Nucleophilic addition]], a type of reaction in organic chemistry
* [[Numerical aperture]], a number that characterizes a range of angles in an optical system
* nA, the symbol for [[Ampere|nanoampere]]
* [[Naturally aspirated engine]]

==Biology and medicine==
* [[Na (tree)]] or ''Mesua ferrea'', a species of tree native to Sri Lanka
* [[Neuroacanthocytosis]], a neurological condition
* ''[[Nomina Anatomica]]'', a former international standard for human anatomical nomenclature
* [[Noradrenaline]], a hormone
* [[Nucleic acid analogue]], compounds analogous to naturally occurring RNA and DNA

==Places==
===Current===
* [[Namibia]] (ISO country code)
* [[Naples]] (car number plate code: NA), Italy
* [[North America]], a continent
* [[North Africa]], a subcontinent

===Historical===
* [[Netherlands Antilles]] (former international vehicle registration code: NA)
* [[Na (Chinese state)]], a small state of the Chinese Zhou dynasty from the 11th to 8th centuries BC
* [[Nakoku]], or Na, a state in Kyūshū, Japan from the 1st to early 3rd centuries AD

==Names and titles==
* [[Na (Korean surname)|Na (羅)]], a Korean surname related to the Chinese surname [[Luo (surname)|Luo]]
* Na, a particle used in [[Thai name#Royal and noble names|Thai noble names]]
* [[National Academician]], a member of the National Academy of Design

==Art and entertainment==
* [[Na (drum)]], a drum played by Tibetan shamans
* Nahal, Shine's pet Bengal tiger on the Nick Jr. TV show ''[[Shimmer and Shine]]''
* [[New adult fiction]], fiction marketed to people 18–30 years old
* ''[[Virgin New Adventures]]'', a series of ''Doctor Who'' novels
* [[Na (EP)|''Na'' (EP)]] by Nayeon, 2024

==Transport==
* NA, the tailcode of [[VFA-94]]
* [[Nepal Airlines]], the national flag carrier airline of Nepal
* [[North American Airlines]] (IATA code: NA)
* [[Naturally aspirated engine]]
* [[Mazda MX-5 (NA)|NA MX-5 Miata]], the first generation of the Mazda Miata

==Language==
* [[Na (cuneiform)]], a cuneiform sign
* [[Na (Javanese)]] (ꦤ), a letter in the Javanese script
* [[Na (kana)]], a Japanese kana
* [[Na dialect]], a Sino-Tibetan variety of India
* [[Na language]] (Narua), a Sino-Tibetan language of Yunnan, China
* [[Nauruan language]] (ISO code: na)

==Organizations==
* [[Narcotics Anonymous]] (NA), a twelve-step program that focuses on recovery from drug addiction
* [[National Alliance (Latvia)]], a Latvian political party
* [[National Alliance (Netherlands)]], a former Dutch political party
* [[National Association (disambiguation)]]
* [[National Association of Professional Base Ball Players]], the first professional baseball league
* [[Nepali Army]], the land military force of Nepal
* [[Neurotics Anonymous]] (N/A), a program for recovery from mental and emotional illness

==Other uses==
* [[.na]], the top-level domain for Namibia
* [[N/A]], meaning not applicable, not available, or no answer
* N.A., the official designation of [[National bank (United States)|federally chartered banks in the United States]]
* [[Mosuo]] or Na, an ethnic group in China near Tibet
* [[Na people]], an ethnic group in India
* [[National archives|National Archives]], the archives of a country

==See also==
* [[Nå (disambiguation)]]
* [[Na Na (disambiguation)]]
* [[Na Na Na (disambiguation)]]

{{Disambiguation}}