thoroughfare vs street

thoroughfare and street both are nouns.

Word	Noun	Adjective	Verb	Adverb
thoroughfare	Yes	No	No	No
street	Yes	No	No	No

As nouns, street is a hyponym of thoroughfare; that is, street is a word with a more specific, narrower meaning than thoroughfare:

thoroughfare: a public road from one place to another
street: a thoroughfare (usually including sidewalks) that is lined with buildings

Other hyponyms of thoroughfare include artery, blind alley, cul de sac, dead-end street, impasse.

thoroughfare (noun)	street (noun)
a public road from one place to another	a thoroughfare (usually including sidewalks) that is lined with buildings
	the part of a thoroughfare between the sidewalks; the part of the thoroughfare on which vehicles travel
	people living or working on the same street
	the streets of a city viewed as a depressed environment in which there is poverty and crime and prostitution and dereliction
	a situation offering opportunities