waking up vs reveille

waking up and reveille both are nouns.

Word	Noun	Adjective	Verb	Adverb
waking up	Yes	No	No	No
reveille	Yes	No	No	No

As nouns, reveille is a hyponym of waking up; that is, reveille is a word with a more specific, narrower meaning than waking up:

waking up: the act of waking
reveille: a signal to get up in the morning; in the military it is a bugle call at sunrise

waking up (noun)	reveille (noun)
the act of waking	a signal to get up in the morning; in the military it is a bugle call at sunrise
	(military) signal to wake up