What does "air" mean?
The substance constituting Earth's atmosphere: a gaseous mixture of nitrogen, oxygen, and various trace gases.
Air
/ɛə/ name, noun, verb, slang
name, noun, verb, slang ·Top 500 ·Elementary level
Meaning at a glance
- Primary sense: The substance constituting Earth's atmosphere: a gaseous mixture of nitrogen, oxygen, and various trace gases.
- Grammar: air is listed as name, noun, verb, slang.
- Nearest alternatives: atmosphere, aura, breeze, gas.
- Useful contrasts: dutch aarde, dutch grond, norwegian grunn.
- Usage evidence: What you are saying is nothing but building a castle in the air.
How to use "air"
- Start with the primary definition, then check the part of speech before placing the word in a sentence.
- Compare nearby synonyms to make sure "air" carries the exact meaning, tone, and strength you need.
- Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.
Meaning check
- Does the word fit the sentence's grammar?
- Does it match the intended tone rather than only the dictionary definition?
- Would a simpler synonym be clearer for the reader?
- Is there enough surrounding context to prevent ambiguity?
Source and review context
This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "air" in a final draft.
If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.
Before you rely on this definition
Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "air" as the right word for your sentence.
If your draft is formal, technical, persuasive, or sensitive, compare "air" with a nearby alternative so the final choice matches both meaning and reader expectation.
Compare nearby meanings
- Use synonyms when you need a softer, stronger, simpler, or more specific word.
- Use antonyms to check the boundary of the meaning and avoid accidental contrast.
- Use the example sentence to confirm the word behaves naturally in context.
- Keep the original wording when a replacement adds complexity without improving precision.
Definition decision workflow
1. Identify the role
Check whether "air" is acting as name, noun, verb, slang in your sentence. A definition is only useful when the grammar matches the way the word is being used.
2. Test the nearest option
Compare it with "atmosphere" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.
3. Confirm with context
Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.
Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.
Final meaning check
Before publishing a sentence with "air", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.
When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.
Definitions
Noun
- 1 The substance constituting Earth's atmosphere: a gaseous mixture of nitrogen, oxygen, and various trace gases. uncountable
"This drill runs on compressed air."
- 2 travel via aircraft wordnet
- 3 The substance constituting Earth's atmosphere: a gaseous mixture of nitrogen, oxygen, and various trace gases.; The substance of the atmosphere seen as an agency of freshness. countable, uncountable
"I'm going outside to get some air."
- 4 a distinctive but intangible quality surrounding a person or thing wordnet
- 5 The substance constituting Earth's atmosphere: a gaseous mixture of nitrogen, oxygen, and various trace gases.; One of the four elements of the ancient Greeks and Romans. countable, historical, uncountable
Show 21 more definitions
- 6 medium for radio and television broadcasting wordnet
- 7 The substance constituting Earth's atmosphere: a gaseous mixture of nitrogen, oxygen, and various trace gases.; A local environment or atmosphere, in the context of its effects on behavior, health, weather, etc. countable, historical, uncountable
"Jeeves: Foreign travel often liberates emotions best kept in check, sir. The air of North America is notoriously stimulating in this regard, as witness the regrettable behavior of its inhabitants in 1776. B. Wooster: Hm? What happened in 1776, Jeeves? Jeeves: I prefer not to dwell on it, if it's convenient to you, sir."
- 8 a succession of notes forming a distinctive sequence wordnet
- 9 The substance of the atmosphere on a planet other than Earth. broadly, uncountable
"The air on Mars is very thin and consists mostly of carbon dioxide."
- 10 the mass of air surrounding the Earth wordnet
- 11 The apparently open space above the ground which this substance fills, (historical) formerly thought to be limited by the firmament but (meteorology) now considered to be surrounded by the near-vacuum of outer space. uncountable, usually
"The flock of birds took to the air."
- 12 the region above the ground wordnet
- 13 A breeze; a gentle wind. countable, uncountable
- 14 a slight wind (usually refreshing) wordnet
- 15 A feeling or sense. countable, uncountable
"to give it an air of artistry and sophistication"
- 16 a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of wordnet
- 17 A feeling or sense.; A sense of poise, graciousness, or quality. countable, uncountable
""He is very plain, undoubtedly—remarkably plain:—but that is nothing compared with his entire want of gentility. I had no right to expect much, and I did not expect much; but I had no idea that he could be so very clownish, so totally without air. I had imagined him, I confess, a degree or two nearer gentility.""
- 18 once thought to be one of four elements composing the universe (Empedocles), associated with the humour blood wordnet
- 19 A feeling or sense.; Pretension; snobbishness; pretence that one is better than others. countable, plural-normally, uncountable
"putting on airs"
- 20 A melody or song, especially a solo; an aria. countable, uncountable
""If I," said Mr. Collins, "were so fortunate as to be able to sing, I should have great pleasure, I am sure, in obliging the company with an air; for I consider music as a very innocent diversion, and perfectly compatible with the profession of a clergyman[…]""
- 21 Nothing; absence of anything. countable, informal, uncountable
- 22 An air conditioning system. countable, uncountable
"Could you turn on the air?"
- 23 Any specific gas. countable, obsolete, uncountable
- 24 The state of being briefly airborne during a jump. uncountable
- 25 A television or radio signal; (by extension) media broadcasts in general. countable, uncountable
"Ernst gave a list of political activists who had been denied access to the air by private broadcasters, and pointed out that "Secretary Hoover's signature in New York sells for $150,000 to $200,000," thus limiting access to the air on the part of labor unions and other underrepresented groups."
- 26 Publicity. uncountable
Verb
- 1 To bring (something) into contact with the air, so as to freshen or dry it. transitive
"I'll hang these clothes on the rack to air them."
- 2 Pronunciation spelling of are. alt-of, pronunciation-spelling
- 3 expose to cool or cold air so as to cool or freshen wordnet
- 4 To let fresh air into (a room or a building), to ventilate. transitive
"It's getting quite stuffy in this room: let's open the windows and air it."
- 5 expose to warm or heated air, so as to dry wordnet
Show 8 more definitions
- 6 To make public (an opinion, concern, issue, secret, differences, etc); to present to public view (and sometimes discussion). transitive
"Residents used the public meeting to air their concerns about the poor state of the roads."
- 7 make public wordnet
- 8 To broadcast (a television show etc.). transitive
"The BBC decided not to air the controversial episode."
- 9 broadcast over the airwaves, as in radio or television wordnet
- 10 To be broadcast. intransitive
"This game show first aired in the 1990s and is still going today."
- 11 be broadcast wordnet
- 12 To ignore (a person). British, Multicultural-London-English, slang, transitive
"Why is this girl airing me?"
- 13 expose to fresh air wordnet
Proper Noun
- 1 Initialism of All India Radio, the national public radio broadcaster of India. abbreviation, alt-of, initialism
- 2 Initialism of American Institutes for Research, a nonprofit research organization in the United States. abbreviation, alt-of, initialism
- 3 The station code of Airport in Hong Kong.
- 4 Initialism of All India Rank. India, abbreviation, alt-of, initialism
Antonyms
dutch aardedutch grondnorwegian grunnromanian teren
Example
"What you are saying is nothing but building a castle in the air."
Common questions
What is a synonym for "air"?
Common synonyms include: atmosphere, aura, breeze, gas, melody, tune.
How do you use "air" in a sentence?
What you are saying is nothing but building a castle in the air.
How do you pronounce "air"?
Pronounced /ɛə/.
Etymology
From Middle English aire, from Old French air, from Latin āēr, from Ancient Greek ἀήρ (aḗr). Displaced native Old English lyft. More at lift, loft.