air vs put down

air is a noun but put down is not a noun.

Word	Noun	Adjective	Verb	Adverb
air	Yes	No	Yes	No
put down	No	No	Yes	No

air (noun)	put down (noun)
travel via aircraft
a distinctive but intangible quality surrounding a person or thing
a succession of notes forming a distinctive sequence
medium for radio and television broadcasting
the region above the ground
the mass of air surrounding the Earth
a slight wind (usually refreshing)
a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of
once thought to be one of four elements composing the universe (Empedocles), associated with the humour blood

air (verb)	put down (verb)
expose to cool or cold air so as to cool or freshen	put down in writing; of texts, musical compositions, etc.
expose to warm or heated air, so as to dry	make a record of; set down in permanent form
make public	put in a horizontal position
broadcast over the airwaves, as in radio or television	remove (cargo, people, etc.) from and leave
be broadcast	cause to sit or seat or be in a settled position or place
expose to fresh air	put (an animal) to death
	reduce in worth or character, usually verbally
	cause to come to the ground