come home vs dawn

come home is not a noun while dawn is a noun.

Word	Noun	Adjective	Verb	Adverb
come home	No	No	Yes	No
dawn	Yes	No	Yes	No

As verbs, come home and dawn are synonyms defined as:

come home and dawn: become clear or enter one's consciousness or emotions

Other synonyms of come home include click, fall into place, get across, get through, penetrate, sink in.

come home (verb)	dawn (verb)
become clear or enter one's consciousness or emotions	become light
	become clear or enter one's consciousness or emotions
	appear or develop