| air | |
| 1. n. (meteorology) The substance constituting earth's atmosphere, particularly: | |
| I'm going outside to get some air. | |
| 2. n. (historical, philosophy, alchemy) understood as one of the four elements of the ancient Greeks and Romans. | |
| 3. n. (historical, medical) understood as a particular local substance with supposed effects on human health. | |
| There was a tension in the air which made me suspect an approaching storm. | |
| 4. n. (physics) understood as a gaseous mixture of nitrogen, oxygen, and various trace gases. | |
| 5. n. (usually with the) The apparently open space above the ground which this substance fills, (historical) formerly thought to be limited by the firmament but (meteorology) now considered surrounded by th | |
| The flock of birds took to the air. | |
| 6. n. A breeze; a gentle wind. | |
| 7. n. A feeling or sense. | |
| to give it an air of artistry and sophistication | |
| 8. n. A sense of poise, graciousness, or quality. | |
| 9. n. (usually plural) Pretension; snobbishness; pretence that one is better than others. | |
| putting on airs | |
| 10. n. (music) A song, especially a solo; an aria. | |
| 11. n. (informal) Nothing; absence of anything. | |
| 12. n. An air conditioner or the processed air it produces. Can be a mass noun or a count noun depending on context; similar to hair. | |
| Could you turn on the air? | |
| Hey, did you mean to leave the airs on all week while you were on vacation? | |
| 13. n. (obsolete, chemistry) Any specific gas. | |
| 14. n. (snowboarding, skateboarding, motor sports) A jump in which one becomes airborne. | |
| 15. n. A television or radio signal. | |
| 16. v. To bring (something) into contact with the air, so as to freshen or dry it. | |
| 17. v. To let fresh air into a room or a building, to ventilate. | |
| It's getting quite stuffy in this room: let's open the windows and air it. | |
| 18. v. To discuss varying viewpoints on a given topic. | |
| 19. v. To broadcast, as with a television show. | |
| 20. v. (UK, MLE, slang) to ignore | |
