adjective
Definition: Relating to or existing in the atmosphere; not solid or liquid.
Example: The air quality in the city improved after the new regulations were put in place.
noun
Definition: A mixture of gases that we breathe, mainly made up of nitrogen and oxygen, which is essential for life. It can also refer to a feeling or atmosphere surrounding a person or place.
Example: The air was fresh and invigorating after the rain.
transitive verb
Definition: To make something known to the public, especially through television or radio, or to let air circulate around something to dry or freshen it.
Example: The company decided to air the new commercial during the Super Bowl.