incipience vs first

incipience and first both are nouns.

Word	Noun	Adjective	Verb	Adverb
incipience	Yes	No	No	No
first	Yes	Yes	No	Yes

As nouns, first is a hypernym of incipience; that is, first is a word with a broader meaning than incipience:

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

incipience (noun)	first (noun)
beginning to exist or to be apparent	the fielding position of the player on a baseball team who is stationed at first of the bases in the infield (counting counterclockwise from home plate)
	the lowest forward gear ratio in the gear box of a motor vehicle; used to start a car moving
	an honours degree of the highest class
	the first element in a countable series
	the first or highest in an ordering or series
	the time at which something is supposed to begin

incipience (adjective)	first (adjective)
	preceding all others in time or space or degree
	highest in pitch or chief among parts or voices or instruments or orchestra sections
	ranking above all others
	serving to begin
	serving to set in motion

incipience (adverb)	first (adverb)
	before anything else
	prominently forward
	the initial time
	before another in time, space, or importance