selling vs marketing

selling and marketing both are nouns.

Word	Noun	Adjective	Verb	Adverb
selling	Yes	No	No	No
marketing	Yes	No	No	No

As nouns, selling and marketing are synonyms defined as:

Other synonyms of selling include merchandising.

selling (noun)	marketing (noun)
the exchange of goods for an agreed sum of money	the exchange of goods for an agreed sum of money
	shopping at a market
	the commercial processes involved in promoting and selling and distributing a product or service