Air Traffic Controller Fears About Flying Shutdown

Definition of air noun in oxford advanced learner's dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Air, mixture of gases comprising the earth's atmosphere.

The meaning of air is the mixture of invisible odorless tasteless gases (such as nitrogen and oxygen) that surrounds the earth; The equivalent mix of gases on another celestial object. Air can be polluted by some gases (such as carbon monoxide, hydrocarbons, and nitrogen oxides), smoke, and ash. This air pollution causes various problems including smog, acid rain.