put under vs put

put under is not a noun while put is a noun.

Word	Noun	Adjective	Verb	Adverb
put under	No	No	Yes	No
put	Yes	No	Yes	No

put under (noun)	put (noun)
	the option to sell a given stock (or stock index or commodity future) at a given price before a given date

put under (verb)	put (verb)
administer an anesthetic drug to	arrange thoughts, ideas, temporal events
	estimate
	formulate in a particular style or language
	attribute or give
	put into a certain place or abstract location
	cause to be in a certain state; cause to be in a certain relation
	adapt
	cause (someone) to undergo something
	make an investment