dawn vs start

dawn and start both are nouns.

Word	Noun	Adjective	Verb	Adverb
dawn	Yes	No	Yes	No
start	Yes	No	Yes	No

As nouns, start is a hypernym of dawn; that is, start is a word with a broader meaning than dawn:

As verbs, start is a hypernym of dawn; that is, start is a word with a broader meaning than dawn:

Other hypernyms of dawn include begin.

dawn (noun)	start (noun)
the earliest period	the act of starting something
the first light of day	a sudden involuntary movement
an opening time period	a turn to be a starter (in a game at the beginning)
	the advantage gained by beginning early (as in a race)
	a signal to begin (as in a race)
	the beginning of anything
	a line indicating the location of the start of a race or a game
	the time at which something is supposed to begin

dawn (verb)	start (verb)
become light	take the first step or steps in carrying out an action
become clear or enter one's consciousness or emotions	set in motion, cause to start
appear or develop	play in the starting lineup
	bring into being
	get off the ground
	begin or set in motion
	get going or set in motion
	depart for someplace
	bulge outward
	move or jump suddenly, as if in surprise or alarm
	begin work or acting in a certain capacity, office or job
	begin an event that is implied and limited by the nature or inherent function of the direct object
	have a beginning, in a temporal, spatial, or evaluative sense
	have a beginning characterized in some specified way