stock exchange vs stock market

stock exchange and stock market both are nouns.

Word	Noun	Adjective	Verb	Adverb
stock exchange	Yes	No	No	No
stock market	Yes	No	No	No

As nouns, stock exchange and stock market are synonyms defined as:

stock exchange and stock market: an exchange where security trading is conducted by professional stockbrokers

Other synonyms of stock exchange include securities market.

stock exchange (noun)	stock market (noun)
an exchange where security trading is conducted by professional stockbrokers	an exchange where security trading is conducted by professional stockbrokers