outset vs get-go

outset and get-go both are nouns.

Word	Noun	Adjective	Verb	Adverb
outset	Yes	No	No	No
get-go	Yes	No	No	No

As nouns, outset and get-go are synonyms defined as:

Other synonyms of outset include beginning, commencement, first, kickoff, offset, showtime, start, starting time.

outset (noun)	get-go (noun)
the time at which something is supposed to begin	the time at which something is supposed to begin