springboard vs point of departure

springboard and point of departure both are nouns.

Word	Noun	Adjective	Verb	Adverb
springboard	Yes	No	No	No
point of departure	Yes	No	No	No

As nouns, springboard and point of departure are synonyms defined as:

springboard and point of departure: a beginning from which an enterprise is launched

Other synonyms of springboard include jumping-off point.

springboard (noun)	point of departure (noun)
a beginning from which an enterprise is launched	a beginning from which an enterprise is launched
a flexible board for jumping upward	a place from which an enterprise or expedition is launched