air
noun
1.
a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of
2.
3.
a distinctive but intangible quality surrounding a person or thing
4.
5.
the mass of air surrounding the Earth
6.
once thought to be one of four elements composing the universe (Empedocles), associated with the humour blood
7.
a succession of notes forming a distinctive sequence
9.
travel via aircraft