What part of speech is air?

"Air" can be a few different parts of speech depending on its use in a sentence:

* Noun: When referring to the mixture of gases that surrounds the Earth.

* Example: "The *air* was thick with smoke."

* Verb: When referring to the act of broadcasting something.

* Example: "The news *aired* at 6 pm."

* Adjective: When referring to something related to the air, like travel by air.

* Example: "The *air* traffic was heavy."

The most common use is as a noun.