Air Definition–noun | 1. | a mixture of nitrogen, oxygen, and minute amounts of other gases that surrounds the earth and forms its atmosphere. |
| 2. | a stir in the atmosphere; a light breeze. |
| 3. | overhead space; sky: The planes filled the air. |
| 4. | circulation; publication; publicity: to give air to one's theories. |
| 5. | the general character or complexion of anything; appearance: His early work had an air of freshness and originality. |
| 6. | the peculiar look, appearance, and bearing of a person: There is an air of mystery about him. |
| 7. | airs, affected or unnatural manner; manifestation of pride or vanity; a
38a
ssumed haughtiness: He acquired airs that were insufferable to his friends. |
| 8. | Music.
| b. | the soprano or treble part. |
| d. | Also, ayre. an Elizabethan art song. |
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| 9. | aircraft as a means of transportation: to arrive by air; to ship goods by air. |
| 10. | Informal. air conditioning or an air-conditioning system: The price includes tires, radio, and air. |
| 11. | Radio. the medium through which radio waves are transmitted. |
–verb (used with object)
3e8
| 13. | to expose to the air; give access to the open air; ventilate (often fol. by out): We air the bedrooms every day. |
| 14. | to expose ostentatiously; bring to public notice; display: to air one's opinions; to air one's theories. |
| 15. | to broadcast or televise. |
–verb (used without object) | 16. | to be exposed to the open air (often fol. by out): Open the window and let the room air out. |
| 17. | to be broadcast or televised. |
–adjective | 18. | operating by means of air pressure or by acting upon air: an air drill; an air pump. |
| 19. | of or pertaining to aircraft or to aviation: air industry. |
| 20. | taking place in the air; aerial: air war. |
—Idioms| 21. | clear the air, to eliminate dissension, ambiguity, or tension from a discussion, situation, etc.: The staff meeting was intended to help clear the air. |
| 22. | get the air, Informal. | a. | to be rejected, as by a lover. |
| b. | to be dismissed, as by an employer: He had worked only a few days when he got the air. |
|
| 23. | give (someone) the air, Informal. | a. | to reject, as a lover: He was bitter because she gave him the air. |
| b. | to dismiss, as an employee. |
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| 24. | in the air, in circulation; current: There's a rumor in the air that we're moving to a new location. |
| 25. | into thin air, completely out of sight or reach: He vanished into thin air. |
| 26. | off the air, | a. | not broadcasting: The station goes off the air at midnight. |
| b. | not broadcast; out of operation as a broadcast: The program went off the air years ago. |
| c. | (of a computer) not in operation. |
|
| 27. | on the air, | a. | in the act of broadcasting; being broadcast: The program will be going on the air in a few seconds. |
| b. | (of a computer) in operation. |
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| 28. | put on airs, to assume an affected or haughty manner: As their fortune increased, they began to put on airs. |
| 29. | take the air, | a. | to go out-of-doors; take a short walk or ride. |
| b. | Slang. to leave, esp. hurriedly. |
|
| 30. | up in the air, | a. | Also, in the air. undecided or unsettled: The contract is still up in the air. |
| b. | Informal. angry; perturbed: There is no need to get up in the air over a simple mistake. |
|
| 31. | walk or tread on air, to feel very happy; be elated. |
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From Dictionary
Purifier Definition–verb (used with object) | 1. | to make pure; free from anything that debases, pollutes, adulterates, or contaminates: to purify metals. |
| 2. | to free from foreign, extraneous, or objectionable elements: to purify a language. |
| 3. | to free from guilt or evil. |
| 4. | to clear or purge (usually fol. by of or from). |
|
ede
5. | to make clean for ceremonial or ritual use. |
–verb (used without object) |
From Dictionary
Filter Definition–noun | 1. | any substance, as cloth, paper, porous porcelain, or a layer of charcoal or sand, through which liquid or gas is passed to remove suspended impurities or to recover solids. |
| 2. | any device, as a tank or tube, containing such a substance for filtering. |
| 3. | any of various analogous devices, as for removing dust from air or impurities from tobacco smoke, or for eliminating certain kinds of light rays. |
| 4. | Informal. a filter-tipped cigarette or cigar. |
| 5. | Photography. a lens screen of dyed gelatin or glass for controlling the rendering of color or for diminishing the intensity of light. |
| 6. | Electronics, Physics. a circuit or device that passes certain frequencies and blocks others. |
| 7. | Mathematics. a collection of subsets of a topological space, having the properties that the intersection of two subsets in the collection is a subset in the collection and that any set containing a subset in the collection is in the collection. |
–verb (used with object) | 8. | to remove by the action of a filter. |
| 9. | to act as a filter for; to slow or partially obstruct the passage of: The thick leaves filtered the sunlight. |
| 10. | to pass through or as through a filter. |
–verb (used without object) | 11. | to pass or slip through slowly, as through an obstruction or a filter: Enemy agents managed to filter into the embattled country. |
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From Dictionary
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