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The meaning of air is the mixture of invisible odorless tasteless gases (such as nitrogen and oxygen) that surrounds the earth; Air is a mixture of many gases and tiny dust particles. Air contains important substances, such as oxygen and nitrogen, that most species need to survive.

See examples of air used in a sentence. Book air canada flights online for a seamless travel experience. Air bridges knowledge and action to support the whole child and family.

Air is a mixture of gases, most of which are naturally occurring. Air also contains a significant amount of human-made air pollutants, including some that are not safe to breathe and some.