turning point vs carrefour

turning point and carrefour both are nouns.

Word	Noun	Adjective	Verb	Adverb
turning point	Yes	No	No	No
carrefour	Yes	No	No	No

As nouns, carrefour is a hypernym of turning point; that is, carrefour is a word with a broader meaning than turning point:

Other hypernyms of turning point include crossing, crossroad, crossway, intersection.

turning point (noun)	carrefour (noun)
the intersection of two streets	a junction where one street or road crosses another
an event marking a unique or important historical change of course or one on which important developments depend