About 18,000,000 results
Open links in new tab
  1. AIR Definition & Meaning - Merriam-Webster

    The meaning of AIR is the mixture of invisible odorless tasteless gases (such as nitrogen and oxygen) that surrounds the earth; also : the equivalent mix of gases on another celestial object …

  2. Air | Composition, Oxygen, Nitrogen | Britannica

    Air, mixture of gases comprising the Earth’s atmosphere. The mixture contains a group of gases of nearly constant concentrations and a group with concentrations that are variable in both …

  3. Air - Simple English Wikipedia, the free encyclopedia

    Air is a mixture of many gases and tiny dust particles. It is the clear gas in which living things live and breathe. It has an indefinite shape and volume. It has mass and weight, because it is …

  4. Air - National Geographic Society

    Oct 1, 2024 · Air is the invisible mixture of gases that surrounds Earth. Air contains important substances, such as oxygen and nitrogen, that most species need to survive.

  5. Air - definition of air by The Free Dictionary

    1. Of or relating to the air or the movement of air: an air tube. 2. Existing or living in the air; aerial. 3. Powered by compressed air: an air horn. 4. Containing or inflated by air.

  6. AIR | definition in the Cambridge English Dictionary

    AIR meaning: 1. the mixture of gases that surrounds the earth and that we breathe: 2. the space above the…. Learn more.

  7. air noun - Definition, pictures, pronunciation and usage notes

    Definition of air noun in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

  8. Air Definition & Meaning | YourDictionary

    Air definition: An atmospheric movement; a breeze or wind.

  9. AIR definition and meaning | Collins English Dictionary

    The air is the space around things or above the ground. Government troops broke up the protest by firing their guns in the air. Smoke seemed to hang in the air.

  10. AIR Definition & Meaning | Dictionary.com

    AIR definition: a mixture of nitrogen, oxygen, and minute amounts of other gases that surrounds the earth and forms its atmosphere. See examples of air used in a sentence.