put vs put under

put is a noun but put under is not a noun.

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

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

put (verb)	put under (verb)
arrange thoughts, ideas, temporal events	administer an anesthetic drug to
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