span vs put

span and put both are nouns.

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

span (noun)	put (noun)
the act of sitting or standing astride	the option to sell a given stock (or stock index or commodity future) at a given price before a given date
a structure that allows people or vehicles to cross an obstacle such as a river or canal or railway etc.
the distance or interval between two points
a unit of length based on the width of the expanded human hand (usually taken as 9 inches)
two items of the same kind
the complete duration of something

span (verb)	put (verb)
to cover or extend over an area or time period	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