na

[ nah, nuh ]
/ nɑ, nə /
Chiefly Scot.

adverb

no1.
not; in no way; by no means.

conjunction

nor; neither.

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Origin of na

before 900; Middle English (north and Scots); in part representing Old English (n(e) not, nor + ā ever; cf. ay1); in part variant of ne;cf. no1

Definition for na (2 of 5)

Na

Symbol, Chemistry.

sodium.

Origin of Na

From the New Latin word natrium

Definition for na (3 of 5)

NA

abbreviation

not applicable.Also n/a
not available.

Definition for na (4 of 5)

n/a

abbreviation

no account.
not applicable.Also NA
not available.

Definition for na (5 of 5)

N.A.

National Army.
North America.
not applicable.
Microscopy. numerical aperture.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for na

British Dictionary definitions for na (1 of 5)

na1
/ (nɑː) /

determiner

a variant of nae

British Dictionary definitions for na (2 of 5)

na2

the internet domain name for

Namibia

British Dictionary definitions for na (3 of 5)

Na

the chemical symbol for

sodium

Word Origin for Na

Latin natrium

British Dictionary definitions for na (4 of 5)

NA

abbreviation for

North America
Netherlands Antilles (international car registration)

British Dictionary definitions for na (5 of 5)

n/a

abbreviation for

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

Medical definitions for na (1 of 2)

Na

The symbol for the elementsodium

Medical definitions for na (2 of 2)

NA

abbr.

Nomina Anatomica (official system for anatomical nomenclature)
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for na

Na

The symbol for sodium.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.