Wall Street vs the Street

Wall Street and the Street both are nouns.

Word	Noun	Adjective	Verb	Adverb
Wall Street	Yes	No	No	No
the Street	Yes	No	No	No

As nouns, Wall Street and the Street are synonyms defined as:

Wall Street and the Street: used to allude to the securities industry of the United States

Wall Street (noun)	the Street (noun)
used to allude to the securities industry of the United States	used to allude to the securities industry of the United States
a street in lower Manhattan where the New York Stock Exchange is located; symbol of American finance