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AID

1.
American Institute of Decorators.
2.
American Institute of Interior Designers.
3.
Also, A.I.D. British. artificial insemination donor.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for a. i. d

aid

/eɪd/
verb
1.
to give support to (someone to do something); help or assist
2.
(transitive) to assist financially
noun
3.
assistance; help; support
4.
a person, device, etc, that helps or assists: a teaching aid
5.
(mountaineering) Also artificial aid. any of various devices such as piton or nut when used as a direct help in the ascent
6.
(in medieval Europe; in England after 1066) a feudal payment made to the king or any lord by his vassals, usually on certain occasions such as the marriage of a daughter or the knighting of an eldest son
7.
(Brit, informal) in aid of, in support of; for the purpose of
Derived Forms
aider, noun
Word Origin
C15: via Old French aidier from Latin adjūtāre to help, from juvāre to help

Aid

combining form
1.
denoting a charitable organization or function that raises money for a cause: Band Aid, Ferryaid

AID

abbreviation
1.
acute infectious disease
2.
artificial insemination (by) donor: former name for Donor Insemination (DI)
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
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Word Origin and History for a. i. d

aid

n.

early 15c., "wartime tax," also "help, support, assistance," from Old French aide, earlier aiudha "aid, help, assistance" (9c.), from Late Latin adjuta, from fem. past participle of Latin adiuvare (past participle adiutus) "to give help to," from ad- "to" (see ad-) + iuvare "to help" (see adjutant). Meaning "thing by which assistance is given" is recorded from c.1600. Meaning "material help given by one country to another" is from 1940.

v.

c.1400, "to assist, help," from Old French aidier "help, assistance," from Latin adiutare, frequentative of adiuvare (past participle adiutus) "give help to" (see adjutant). Related: Aided; aiding.

Online Etymology Dictionary, © 2010 Douglas Harper
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a. i. d in Medicine

AID abbr.
artificial insemination donor

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Related Abbreviations for a. i. d

AID

Agency for International Development
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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