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na

1 American  
[nah, nuh] / nɑ, nə /

adverb

  1. no.

  2. not; in no way; by no means.

conjunction

  1. nor; neither.

Na 2 American  
Symbol, Chemistry.

  1. sodium.

NA 3 American  

abbreviation

  1. not applicable. Also n/a

  2. not available.

n/a 4 American  

abbreviation

  1. no account.

  2. not applicable. Also NA

  3. not available.

N.A. 5 American  

abbreviation

  1. National Army.

  2. North America.

  3. not applicable.

  4. Microscopy. numerical aperture.

NA 1 British  

abbreviation

  1. North America

  2. Netherlands Antilles (international car registration)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Na 2 British  

symbol

  1. sodium

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
na 3 British  
/ nɑː /

determiner

  1. a variant of nae

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
na 4 British  

abbreviation

  1. Namibia

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
n/a 5 British  

abbreviation

  1. not applicable

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of na1

before 900; Middle English (north and Scots); in part representing Old English nā ( n ( e ) not, nor + ā ever; ay 1 ); in part variant of ne; no 1

Origin of Na2

From the New Latin word natrium

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The hypnotic tune with a memorable “nah na na na nah” chorus earned them appearances on TV music variety programs like “American Bandstand.”

From Los Angeles Times • Sep. 26, 2025

Searching for a way back to their inn, they discover, you guessed it, ye olde Craigh na Dun.

From Los Angeles Times • Aug. 8, 2025

They went on to donate the funds to two Belfast organizations, Glór na Móna and R-City Belfast.

From Los Angeles Times • Apr. 11, 2025

Fleadh Cheoil na hÉireann - the All-Ireland Fleadh - is held for a week during August and, in the past, has welcomed up to 600,000 visitors to the host town or city.

From BBC • Mar. 8, 2025

“Na, na, not near so far. But out dis vay ees river, you know?”

From "Watership Down: A Novel" by Richard Adams

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.