Noun

Buying and selling in a market.

(uncountable) The promotion, distribution and selling of a product or service; includes market research and advertising.

*{{quote-magazine, title=No hiding place

, date=2013-05-25, volume=407, issue=8837, page=74, magazine=(The Economist) citation , passage=In America alone, people spent $170 billion on “direct marketing ”—junk mail of both the physical and electronic varieties—last year. Yet of those who received unsolicited adverts through the post, only 3% bought anything as a result.}}

Shopping, going to market.

* 1926 , (George Herriman), comic strip Us Husbands'', June 12th, 1926 (reprinted in the back of ''Krazy & Ignatz , vol. 1922–1924, Fantagraphics, 2012, ISBN 978-1-60699-477-1, p. 223):

[Wife to husband:] I'm going out to do my marketing – keep out of the kitchen, while I'm gone.

Noun

(head)

(business, economics) That which is produced, then traded, bought or sold, then finally consumed and consists of an action or work.