1 [air]
a mixture of nitrogen, oxygen, and minute amounts of other gases that surrounds the earth and forms its atmosphere.
a stir in the atmosphere; a light breeze.
overhead space; sky: The planes filled the air.
circulation; publication; publicity: to give air to one's theories.
the general character or complexion of anything; appearance: His early work had an air of freshness and originality.
the peculiar look, appearance, and bearing of a person: There is an air of mystery about him.
airs, affected or unnatural manner; manifestation of pride or vanity; assumed haughtiness: He acquired airs that were insufferable to his friends.
a tune; melody.
the soprano or treble part.
an aria.
Also, ayre. an Elizabethan art song.
aircraft as a means of transportation: to arrive by air; to ship goods by air.
Informal. air conditioning or an air-conditioning system: The price includes tires, radio, and air.
(during an airborne stunt) the height between the ground and an athlete or an athlete with his or her equipment: The BMX course was designed for riders to get good air.
such a jump or other airborne stunt: The snowboarder took first place with four clean airs.
Radio. the medium through which radio waves are transmitted.
Archaic. breath.
verb (used with object)
to expose to the air; give access to the open air; ventilate (often followed by out ): We air the bedrooms every day.
to expose ostentatiously; bring to public notice; display: to air one's opinions; to air one's theories.
to broadcast or televise.
verb (used without object)
to be exposed to the open air (often followed by out ): Open the window and let the room air out.
to be broadcast or televised.
operating by means of air pressure or by acting upon air: an air drill; an air pump.
of or relating to aircraft or to aviation: air industry.
taking place in the air; aerial: air war.
clear the air, to eliminate dissension, ambiguity, or tension from a discussion, situation, etc.: The staff meeting was intended to help clear the air.
get some air,
to take a break from an unpleasant encounter or stifling environment: She walked away from the argument to get some air.
to take a short rest.
get the air, Informal.
to be rejected, as by a lover.
to be dismissed, as by an employer: He had worked only a few days when he got the air.
give (someone) the air, Informal.
to reject, as a lover: He was bitter because she gave him the air.
to dismiss, as an employee.
in the air, in circulation; current: There's a rumor in the air that we're moving to a new location.
into thin air, completely out of sight or reach: He vanished into thin air.
off the air,
not broadcasting: The station goes off the air at midnight.
not broadcast; out of operation as a broadcast: The program went off the air years ago.
on the air, in the act of broadcasting; being broadcast: The program will be going on the air in a few seconds.
put on airs, to assume an affected or haughty manner: As their fortune increased, they began to put on airs.
take the air,
to go out-of-doors; take a short walk or ride.
Slang. to leave, especially hurriedly.
to begin broadcasting.
up in the air,
Also, in the air. undecided or unsettled: The contract is still up in the air.
Informal. angry; perturbed: There is no need to get up in the air over a simple mistake.
walk / tread on air, to feel very happy; be elated.

1150–1200; Middle English eir < Old French air < Latin āēr- (accusative āerem) < Greek āer- (stem of āḗr) the lower atmosphere; conflated with (especially for defs 4 and 5) French air, Old French aire nature, character < Latin ager field (cf. acre) and ārea threshing floor, clearing, area; and with (for def 7) French air < Italian aria aria

airlike, adjective
unaired, adjective
well-aired, adjective

1. air, e'er, ere, err, heir ; 2. er, err.

2. See wind1. 5, 6. impression, aspect. 6. aura, demeanor, attitude. See manner1. Unabridged


a region in N Niger, in the Sahara: low massif and oases. About 30,000 sq. mi. (77,700 sq. km).
Also called Asben. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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World English Dictionary
air (ɛə)
1.  the mixture of gases that forms the earth's atmosphere. At sea level dry air has a density of 1.226 kilograms per cubic metre and consists of 78.08 per cent nitrogen, 20.95 per cent oxygen, 0.93 per cent argon, 0.03 per cent carbon dioxide, with smaller quantities of ozone and inert gases; water vapour varies between 0 and 4 per cent and in industrial areas sulphur gases may be present as pollutants
2.  the space above and around the earth; skyRelated: aerial
3.  breeze; slight wind
4.  public expression; utterance: to give air to one's complaints
5.  a distinctive quality: an air of mystery
6.  a person's distinctive appearance, manner, or bearing
7.  music
 a.  a simple tune for either vocal or instrumental performance
 b.  another word for aria
8.  transportation in aircraft (esp in the phrase by air)
9.  breath breath an archaic word for breath
10.  informal (Austral) the height gained when getting airborne in surfing, snowboarding, etc
11.  clear the air to rid a situation of tension or discord by settling misunderstandings, etc
12.  slang give someone the air to reject or dismiss someone
13.  in the air
 a.  in circulation; current
 b.  in the process of being decided; unsettled
14.  into thin air leaving no trace behind
15.  off the air not in the act of broadcasting or being broadcast on radio or television
16.  on the air in the act of broadcasting or being broadcast on radio or television
17.  out of thin air, from thin air suddenly and unexpectedly
18.  take the air to go out of doors, as for a short walk or ride
19.  up in the air
 a.  uncertain
 b.  informal agitated or excited
20.  walk on air to feel elated or exhilarated
21.  (modifier) astrology earth fire Compare water of or relating to a group of three signs of the zodiac, Gemini, Libra, and Aquarius
22.  to expose or be exposed to the air so as to cool or freshen; ventilate: to air a room
23.  to expose or be exposed to warm or heated air so as to dry: to air linen
24.  (tr) to make known publicly; display; publicize: to air one's opinions
25.  (intr) (of a television or radio programme) to be broadcast
Related: aerial
[C13: via Old French and Latin from Greek aēr the lower atmosphere]

Aïr (ˈɑːɪə)
Azbine, Also called: Asben a mountainous region of N central Niger, in the Sahara, rising to 1500 m (5000 ft): a former native kingdom. Area: about 77 700 sq km (30 000 sq miles)

abbreviation for
All India Radio

airs (ɛəz)
pl n
affected manners intended to impress others (esp in the phrases give oneself airs, put on airs)

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

c.1300, "invisible gases that make up the atmosphere," from O.Fr. air, from L. ærem (nom. ær), from Gk. aer (gen. æros) "air" (related to aenai "to blow, breathe"), of unknown origin, possibly from a base *awer- and thus related to aeirein "to raise" and arteria "windpipe, artery"
(see aorta), on notion of "lifting, that which rises." In Homer mostly "thick air, mist;" later "air" as one of the four elements. Words for "air" in Indo-European languages tend to be associated with wind, brightness, sky. Replaced native lyft, luft (see loft). The verb meaning "to expose to open air" is first recorded 1520s. Broadcasting sense (e.g. on the air) first recorded 1927. To give (someone) the air "dismiss" is from 1900. Air pollution is attested by 1870.

"assumed manner, affected appearance," 1650s (especially in phrase put on airs, 1781), perhaps via Fr. air "look, appearance, mien, bearing, tone" (O.Fr. aire "reality, essence, nature, descent, extraction" 12c.; cf. debonair), from L. ager "place, field" (see
acre) on notion of "place of origin." Air in the sense of "manner, appearance" (e.g. an air of mystery) is attested in English from 1590s, an independent adoption of Fr. air. But perhaps these senses in English also developed from or were infl. by air (1); cf. L. spiritus "breath, breeze," also "high spirit, pride," and the extended senses of anima.

"melody, tune," 1580s, from It. aria (see aria).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

air (âr)

  1. A colorless, odorless, tasteless, gaseous mixture, approximately 78 percent nitrogen and approximately 21 percent oxygen with lesser amounts of argon, carbon dioxide, hydrogen, neon, helium, and other gases.

  2. This mixture, with varying amounts of moisture and particulate matter, enveloping Earth; the atmosphere.

  3. Any of various respiratory gases. No longer in technical use.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
air   (âr)  Pronunciation Key 
The colorless, odorless, tasteless mixture of gases that surrounds the Earth. Air consists of about 78 percent nitrogen and 21 percent oxygen, with the remaining part made up mainly of argon, carbon dioxide, neon, helium, methane, and krypton in decreasing order of volume. Air also contains varying amounts of water vapor, particulate matter such as dust and soot, and chemical pollutants.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Abbreviations & Acronyms
American Institutes for Research
Aerometric Information Retrieval System
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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Bible Dictionary

Air definition

the atmosphere, as opposed to the higher regions of the sky (1 Thess. 4:17; Rev. 9:2; 16:17). This word occurs once as the rendering of the Hebrew _ruah_ (Job 41:16); elsewhere it is the rendering of _shamaiyim_, usually translated "heavens." The expression "to speak into the air" (1 Cor. 14:9) is a proverb denoting to speak in vain, as to "beat the air" (1 Cor. 9:26) denotes to labour in vain.

Easton's 1897 Bible Dictionary
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Example sentences
He is a retained attorney, and these airs of the bench are the emptiest affectation.
It's got the old airs and familiar faces and works up a commendable sweat.
Weird that he has to refrain from showing it off until the show airs.
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