awakening vs reveille

awakening and reveille both are nouns.

Word	Noun	Adjective	Verb	Adverb
awakening	Yes	No	No	No
reveille	Yes	No	No	No

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

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

awakening (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