starting point vs beginning

starting point and beginning both are nouns.

Word	Noun	Adjective	Verb	Adverb
starting point	Yes	No	No	No
beginning	Yes	Yes	No	No

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

Other hypernyms of starting point include commencement, first, get-go, kickoff, offset, outset, showtime, start, starting time.

starting point (noun)	beginning (noun)
earliest limiting point	the act of starting something
	the first part or section of something
	the event consisting of the start of something
	the place where something begins, where it springs into being
	the time at which something is supposed to begin

starting point (adjective)	beginning (adjective)
	serving to begin