daylight vs afternoon

daylight and afternoon both are nouns.

Word	Noun	Adjective	Verb	Adverb
daylight	Yes	No	No	No
afternoon	Yes	No	No	No

As nouns, afternoon is a hyponym of daylight; that is, afternoon is a word with a more specific, narrower meaning than daylight:

daylight: the time after sunrise and before sunset while it is light outside
afternoon: the part of the day between noon and evening

Other hyponyms of daylight include midafternoon, eve, even, evening, eventide.

daylight (noun)	afternoon (noun)
light during the daytime	a conventional expression of greeting or farewell, used to wish someone a good afternoon
the time after sunrise and before sunset while it is light outside	the part of the day between noon and evening